Frequency tuning

Buy 512HZ Frequency Tuning Fork with Wooden Resonance Box Unit Mallet C Scale Acoustical Experiment for R317.43

This pedal is designed to tune electric guitar and bass. Its ture bypass design can minimize tone loss and get more control of you pedal. It has two ways to display tuning status. Features: Two tuning modes: Strum(polyphonic) and Chromatic. Flat tuning, drop D tuning and A4 frequency range. Two ways to display tuning status, choose one of them as you like. True bypass design, minimizes tone loss and get more control of your pedal.Designed with pedal switch, make it convenient to tune. Metal housing, good durability.Suitable for both electric guitar and bass. Specifications: Tuning range: AHz)-CHz) Tuning mode: Chromatic, Polyphonic A4 range: 436Hz-445Hz Tuning precision: ±0.5Hz Input impedance:1k Ohms Output impedance:10k Ohms Power: 9V DC (9V Battery or ACD-007A Adapter)  (Neither included) Product size: cm / in Product weight: 241g / 8.5oz Package size: cm / in Package weight: 301g / 10.6oz Package List: 1 * Strum Tuner 1 * User Manual (English & Chinese) This item is shipped from China, carried by Hong Kong Post and SA Post.                   

The AXT200 Axient Handheld Frequency Diversity Transmitter is a rechargeable, remotely controllable handheld transmitter with frequency diversity for seamless, uninterrupted audio in even the most crowded RF environments. In addition to Frequency Diversity, the AXT200 delivers ultra-linear RF performance for more channels on air, superb audio quality. Its advanced rechargeable power management supports extended battery life and highly accurate status metering. ShowLink¿ Remote Control enables comprehensive real-time remote control of all transmitter parameters, including real-time frequency adjustments. Features Electronics ¿ Frequency Diversity ¿ Enables simultaneous transmission on two independent frequencies to ensure seamless, uninterrupted audio for mission-critical transmitters in extreme RF settings. ¿ Single-frequency transmission can also be enabled, to conserve spectrum. ¿ Ultra-linear RF performance maximizes available channel capacity in challenging RF environments. ¿ IR Sync establishes connection of transmitter to receiver with one touch over infrared. ¿ Switchable 10/50mW RF power levels to extend run times or increase signal strength. ¿ Up to 80 MHZ tuning range matched to UHF-R transmitter ranges. Design ¿ Rugged, sleek industrial design that withstands the demands of extreme performances. ¿ Lockable user interface prevents accidental or inadvertent changes to system controls once settings are made. ¿ Advanced control menu to adjust frequency, audio and security settings from the transmitter. ¿ High-quality backlit display provides clear view and control of all transmitter functions in low- or bright-light environments. Power Management ¿ Advanced lithium-ion batteries provide reliable, rechargeable power with up to 10 hours of run time. ¿ Real-time metering reports remaining battery power in hours and minutes on transmitters, receivers and WWB6 to within 15-minutes¿ accuracy. ¿ Zero memory effect through lithium-ion chemistry eliminates the memory effect problems inherent in previous generations of rechargeable batteries. ¿ Rapid charging brings batteries to 50% capacity within 1 hour. ¿ Integrated battery design seamlessly and securely locks the rechargeable battery into transmitter body. ShowLink® Remote Control ¿ Comprehensive real-time remote control of all transmitter parameters. ¿ Remote gain adjustability: Remotely adjust a performer¿s transmitter gain in real time. ¿ Remote frequency change: Execute a synchronized frequency change with a linked receiver in a split second. ¿ Remote RF Mute: Conserves power and RF spectrum.

Product Description: The Mini FM radio adopts digital signal processing technology, using the software programming achieving of wireless radio all functions, receiving more stable and it is very simple in operation. the product equipped with an ear-in headphone and a lanyard. Name:Mini Frequency Modulation（FM） Radio Material: plastic shell Size:92 x 54 x 15mm / 3.6 x 2.1x 0.6'' Earphone jack: 3.5mm Tuning increase: 0.1MHz Built-in speaker: No FM frequency: 60-108MHz Sensitivity: Signal to noise ratio: 45db Stereo separation: 32dB Power supply: 2 x AAA batteries (not included) Application: Suitable for listening to the FM broadcast and large meetings. Features: * High sensitivity and selectivity with excellent reception * FM frequency range 60-108MHz * Automatic search and manual search the radio stations * 5 station presets: you can manually store five favorite stations * Press the 1-5 keys to quickly select storage station * Mono / stereo selectable * With 24-hour digital clock * 30 level volume control * Lock switch to prevent accidental operation General Quantity 1 set Material Plastic Specification Tuner Bands 60-108MHz Interface 3.5mm Headphones Included Yes Battery Type AAA Dimensions & Weight Dimensions 4.72 in x 3.15 in x 1.18 in (12 cm x 8 cm x 3 cm) Weight 3.42 oz (97 g) Packing List 1 x FM Radio 1 x In-ear Stereo Earphone 1 x Lanyard 1 x Chinese User Manual

TUNING ITEMS: Chromatic, Guitar, Bass, Ukulele. TUNING METHOD: Clip tuning. PITCH RANGE: 440 Hz A4 frequency. TUNING RANGE: 0A (27.5Hz) - 8C (4186.01Hz) POWER: CR2032 cell battery Acoustic Guitar Tuner Clip On Tuner for Electric Guitars Bass Chromatic Violin Ukulele

The APART PR1000R is a 1U rack-mount AM/FM RDS tuner intended for commercial audio applications. A simple menu structure facilitates setup and ensures intuitive operation. A large tuning knob allows manual frequency tuning in 50 KHz (FM) or 9 KHz (AM) steps. Up to 40 preset stations can be stored. b'/xc2/xa0' Both AM and FM antenna inputs are galvanically isolated from audio ground and the serial interface to prevent ground loop-induced hum. Analog output is via unbalanced RCA phono jacks

Features: This is a 0~55MHz DDS Signal Generator. It is based on AD9850 chip and is very easy to operate. Supports 0~55MHz continual adjust at 1Hz step. This generator has 78L05 voltage regulate. Input current at 200MA, input voltage 8-9V would be the ideal voltage. Input voltage of 12V can only be used for short time testing, otherwise will cause heat to board. 5p/6p connect to encoder as per photo. 7p of the middle connects to digital matrix input. 14p (8V GND) is 8V power supply from main board. If powered by main board, DDS does not need independent power supply. 1~6 correspond to 6 frequency bands: (3.8, 7, 9, 14, 18 or 21, 27 or 29) ISB, USB, CW are the three mode choices. DT is signal from main board. Keys & Connection interfaces: ENC: Encoder switch MEM: Switch for memory mode VFO: Transfer from VFO A to VFO B, or from VFO B to VFO A. SSB: Working mode change: circulate from USB, LSB, AM, CW, and on and on... RIT: Fine tuning to receiving frequency CAL: Set functions KB-1 and KB-2 have common shared pin, but is not GND How to operate: Press CAL, power on, then we enter setting screen. Let go/release CAL. A: ENABLE 6XREFCLE: setting chip clock mode, adjust frequency encoding setting. AD9851 set to 6-multiply frequency, AD9850 set to 1multiply frequency. Press CAL then quickly release to enter next step B. B: DDS-SYSTEM-CLK: Chip working frequency setting. Use encoder switch to adjust value. Operate in accordance with STEP key. AD9851 set at oscillator 6-multiply channel, AD9850 set at actual output of oscillator. Press CAL then quickly release to enter step C. C: MIN_RX_DDS_FREQ: Setting minimum working frequency. Use encoder switch to adjust value and in accordance with STEP key. Press CAL then quickly release to enter step D. D: MAX_RX_DDS_FREQ: Setting maximum working frequency. Use encoder switch to adjust value and in accordance with STEP key. (Smaller than 60MHz would be OK). Press CAL then quickly release to enter step E. E: SSB_OFFSET: Fine tuning for SSB working mode. Use encoder switch to adjust value and in accordance with STEP key. Press CAL then quickly release to enter step F. F: CW_OFFSET: Fine tuning for CW working mode. Use encoder switch to adjust value and in accordance with STEP key. Press CAL then quickly release to enter step G. G: OFFSET_FREQ: Setting of offset Frequency. e.g, set to 9MHz or 10.7MHz, use encoder switch to adjust value and in accordance with STEP key. Press CAL then quickly release to enter step H. H: MULTIPLIER: multiply setting for frequency. Should be set as 1, press CAL then quickly release to enter step I: I: Screen displayes word "SAVE", automatically save the above setting, and returns to normal working. Notes: 1. DDS SYSTEM CLK: can use frequency tester to get 30MHz oscillator, multiply the tested value at 6, then put the multiplied value here. If using AD9851, make initial setting at 180000000. 2. OFFSET FREQ: can be set as + or -. Rotate encoder switch to change value, press STEP key, then rotate encoder switch to adjust step. Minimum working frequency plus (+) offset frequency should be high than 0 (zero). Frequency display: RX = MULTIPLIER x (RX_DDS_FREQ + OFFSET_FREQ) TX = MULTIPLIER x (RX_DDS_FREQ + OFFSET_FREQ + TX_OFFSET_FREQ) The frequency programmed into the DDS, is calculated as shown below. RX = ABS(RX_DDS_FREQ) TX = ABS(RX_DDS_FREQ + TX_OFFSET_FREQ) RX_DDS_FREQ, MIN_RX_DDS_FREQ, MAX_RX_DDS_FREQ, TX_OFFSET_FREQ & OFFSET_FREQ Examples: 1. DDS output range 30~40MHz: MIN_RX_DDS_FREQ MAX_RX_DDS_FREQ OFFSET_FREQ RX Frequency display range. 30 MHZ 40 MHz 100 MHz = 130 MHz to 140 MHz. Note 1 30 MHZ 40 MHz -10 MHz = 20 MHz to 30 MHz. / -40 MHZ -30 MHz 170 MHz = 140 MHz to 130 MHz. Note 2 -40 MHZ -30 MHz 60 MHz = 30 MHz to 20 MHz. / 2. setting FT180A with DDS: ENABLE RPT NO X6 RECLK X6 DDS SYSTEM CLK 180M MAX DDS FREQ 65M MIN RX DDS FREQ 10.701M (Offset frequency + RIT frequency) MAX RX DDS FREQ 60M TX OFFSET FREQ 0 MAX RIT OFFSET 1K (RIT frequency) OFFSET FREQ -10.700M - (Offset frequency) MULTIPLIER 1       Package includes: 1 x DDS Signal Generator  

  10" Powered Studio Subwoofer With XLF Extend your system LF all the way down! The LSR310S subwoofer incorporates JBL’s patented Slip Stream™ Port working in concert with a custom 10" down-firing driver and a 200 Watt amplifier to add deep, powerful bass to any studio monitor system. A JBL first, the XLF Extended Low Frequency setting lets you hear your tracks with the augmented bass tuning used in today’s dance clubs.   FEATURES   JBL Patented Slip Stream™ Port This patented JBL port design works in concert with the LSR310S low frequency driver for deep, dynamic bass response at all playback levels. The double-flared shape of the port is precisely calculated to optimize low-frequency extension. XLF Extended Low Frequency Setting A JBL first, the XLF setting activates a specially-engineered tuning that emulates the ample bass tuning used in today's dance clubs. When producing a dance track, the XLF setting will inspire you and bring a bit of the club to your control from. For inspiration to the max, position the LSR310S in the nearest corner of your room and activate the XLF setting. Custom 10" Down-Firing High Excursion Low Frequency Driver JBL Transducers are legendary for their performance. The custom-designed driver in the LSR310S exemplifies JBL engineering prowess, delivering deep low frequency response into the 20 Hz region, and 113 dB peak output, for long periods at full rated power with no risk of failure. Professional Balanced Inputs and Outputs with balanced XLR and 1/4" inputs and XLR outpus you can add the LSR310S to any studio monitor system to extend its low frequency performance or use it as the ".1" LFE Channel in a surround sound system. Selectable Input Sensitivity The -10dBV/+4 dBu sensitivity switch ensures compatibility with a broad range of signal sources, allowing you to connect the LSR310S to high-output professional equipment without any danger of input overload. Three Crossover Settings The 80 Hz setting is recommended for use with the LSR305, LSR308 or any studio monitors. The External setting allows use of an outboard crossover. Volume Control Simple and effective, the LSR310S volume control has detents that make it easy to balance the LSR310S in your studio monitor system

Awesome power added to Yamaha reliability Yamaha DSR-Series takes portable active loudspeakers to the extreme limits of their potential. Designed through the application of advanced Yamaha digital and acoustic technologies perfected over several decades, DSR provides a listening experience that redefines high definition sound reinforcement. Watts (LF 850W, HF450W)* High Power, High Sound Quality Class-D Amplifiers Features: INTEGRAL DIGITAL TUNING Ideal combination of ultra-precise 48-bit digital sound processing, advanced electronic and acoustic technologies delivers unparalleled high definition sound. INTELLIGENT DYNAMIC CONTROL TD-CONTOUR multi-band dynamic processing with intelligent sensing provide the ideal balance of dynamic sound with consistent clarity at any output level. POWERFUL DIGITAL DRIVE Extremely powerful Class-D amplifiers featuring PFC full-resonance switching-mode power supply help deliver class-leading maximum SPL. EXTENSIVE DSP PROTECTION Extensive DSP-controlled protection ensures reliable operation of all internal components: transducers, power amplifiers and power supplies. Xtreme D-Powered by Leading-Edge Digital Technology The DSR development team took full advantage of a number of advanced digital technologies, both new and refined, based on Yamaha’s extensive experience accumulated over many long years of developing professional audio equipment. Leading-edge digital technological innovations incorporated into the DSR Series loudspeakers include Integral Digital Tuning, Intelligent Dynamic Control, Powerful Digital Drive and Extensive DSP Protection. These four “D” technologies combine to make possible the extreme performance capabilities of the DSR Series, hence the name: Xtreme D is born. INTEGRAL DIGITAL TUNING* Ideal combination of ultra-precise 48-bit digital sound processing, advanced electronic and acoustic technologies delivers unparalleled high definition sound. The digital crossover networks employ high-order FIR* filters that provide linear phase response. Yamaha’s proprietary FIR-X tuning™ simultaneously optimizes frequency and phase response, while adjusting the time alignment between the HF and LF transducers. The end result is sound quality with much better clarity and imaging than is possible with typical crossovers D-CONTOUR is a multi-band dynamic processor featuring intelligent sensing. Normally a compressor is used to boost SPL, but this would effect the entire audio bandwidth resulting in a constricted feel to the sound. D-Contour works by constantly monitoring the output of multiple frequency bands, feeding the data back into the intelligent sensing system. This system then calculates the optimum EQ adjustments for each frequency band, resulting in maximum SPL while maintaining musicality. These EQ adjustments are performed in a highly intelligent manner, linked directly to the auditory response of the human ear. Hence the DSR Series can continuously deliver sound that is natural, clear and powerful - regardless of volume. D-CONTOUR can be turned on or off depending on the acoustic environment and type of sound desired. POWERFUL DIGITAL DRIVE Extremely powerful Class-D amplifiers featuring PFC full-resonance switching-mode power supply help deliver class-leading maximum SPL. W (LF 850W, HF450W)* High Power, High Sound Quality Class-D Amplifiers

Features: Can receive FM stereo, medium wave (expandable to long wave), short wave (2.3 ~ 21.95MHz) radio program, the utility function, easy operation, special power. FM Receiving frequency range can be set to receive 76 ~ 108MHz (Japan standard), 87 ~~ 108MHz or 87.5 ~ 108 MHz (Europe and the United States standard). With external antenna jack, external antenna with the supplied medium wave, can greatly improve the receiver sensitivity of the medium wave / long wave length. There is very useful multi-function digital adjustment knob, can be used to set the time, adjust the frequency, select Address. Has five kinds of selection: convenient tuning ETM(Easy Tuning Mode), manually search for radio frequency (VF), manual search stored radio (VM), automatic search browse radio frequency automatic search browse the stored stations, which ETM Deshengthe original income units for efficient income units. Can be manual, semi-automatic, fully automatic (ATS) to store up to 450 radio frequencies, including FM / in the long-wave can each save 100, shortwave can save 250 frequency points. Multi-function display: can display the working status of the radio frequency, electric field strength, signal-to-noise ratio, temperature, battery capacity, etc. Using a special high-sensitivity film speakers, awesome, audible FM stereo broadcast with headphones. Has broadcast regular boot function, you can regular boot Listening to preset radio program can also be set from 1 to 90 minutes automatic stop downtown rang. Highly intelligent power switch function: You can set the automatic shutdown after boot from 1 to 120 minutes, and also to cancel the automatic shutdown function. Three R6 (V) battery-powered, and can choose to use nickel-metal hydride batteries and intelligent charging function (USB jack). Comes with a fine protective sleeve, Poland external high sensitivity antenna and stereo headphones. Receive FM stereo, AM (can be extended to long-wave), short (2.3 ~ 21.95MHz) radio programs, features and more practical, easy to operate With an external AM antenna interface, with the supplied external AM antenna can greatly improve the AM / L-band receiver sensitivity A very useful multi-functional digital control knob can be used to set the time, adjust the frequency, select the address Multifunction display: can display the radio frequency electric field strength, signal to noise ratio, temperature, battery capacity status, etc. Using a special high sensitivity film speakers, awesome, listen to FM stereo radio with headset Specifications: FM:76 108 MHz; step 0.01/0.1 MHz Standard: 87 108 MHz (except for Japan, Germany, Russia, other than national standards) Germany: 87.5 108 MHz Japan: 76 108 MHz (including part of the campus radio and domestic 4 5 channel TV Sound) Shortwave(SW): 2300 21950 kHz; Step 1/5 kHz Wave (MW): 522 1620 kHz; Step 1/9 kHz (for Asia, Africa and Europe) 520 1710 kHz; Step 1/10 kHz (for North America) 150 1620 kHz; (covering the long-wave) Step 1/9 kHz Noise limited sensitivity: Frequency Modulation (FM) (S / N = 30dB) better than 3 uV AM (MW) (S / N = 26dB) better than 2 mV / m Built-in antenna AM (MW) (S / N = 26dB) better than 1 mV / m external antenna Longwave (LW) (S / N = 26dB) better than 12 mV / m Built-in antenna Longwave (LW) (S / N = 26dB) better than 4 mV / m external antenna Shortwave (SW) (S / N = 26dB) better than 30 uV Output power: Speaker: 350 mW Storage memory count: 450 Frequency Modulation (FM) 100 The long-wave (MW) 100 Shortwave (SW) 250 Power supply: Battery: 3 R6 (V) batteries or rechargeable batteries External power interface: USB specification / DC 5V 300mA Package Included: 1 x TECSUN PL-360 Radio 1 x Special Bag 1 x AM Antenna 1 x External FM/SW Antenna 1 x Stereo Earphones (3.5mm, 114cm) 1 x User Manual

OVERVIEW Portable PA with clear trebles and thumping bass. The Triflex™ II is a 1000 Watt three piece, two-channel sound system, already tweaked and ready to go for sound reinforcement, DJ gigs, and various music playback duties. Consisting of a shared Subwoofer cabinet and a pair of Satellite speakers, the system has been pre-engineered for a balanced sound and a crisp, punchy presentation. The three-way effective performance that the system is capable of provides a clear sound at high output levels, with plenty of punchy bass. FEATURES 1000W Active Two-Channel Three-piece Speaker System One shared Subwoofer cabinet which houses the inputs and power amps Two two-way Satellite speakers with speaker pole stand adaptors Subwoofer has 15" woofer, with 500W peak available power Satellite speakers have 10" woofer, RX 14 1.4" compression driver tweeter 250W peak available power to each Satellite speaker Peavey's exclusive DDT™ compression on the Satellite power amps System comes with two 15 foot speaker cables Protective slipcover with cable storage pockets and built-in Velcro retaining straps Heavy-duty locking casters on Subwoofer cabinet for transport of system Satellite speakers nest on top of the Subwoofer, help ease transport Four-pin twist-lock connectors on amplifier outputs and Satellite inputs SPECIFICATIONS Triflex II 1000W Three-Piece, Two-Channel Sound System SUBWOOFER: Transducer complement: 1 x 15” woofer Nominal Impedance: 8 ohms Power Handling, Transducer: 350W Continuous, 700W Program Box tuning frequency (Fbox): 48 Hz Frequency Response, 1 meter on-axis, swept-sine in anechoic environment (thru system electronics): 40 Hz to 105 Hz Usable low frequency limit (-10 dB point): 34 Hz Sound Pressure Level, 1 Watt, 1 meter in /2 space environment: 102 dB Maximum Sound Pressure Level (1 meter, 1 / 2 space): 127 dB Weight: 98 lbs. (44.5 kg) Dimensions (H x W x D): 19.65” X 28.00” X 28.10” (Includes feet) (unit down on feet) 19.65” X 32.00” X 28.10” (Includes feet and casters) Height in Transport mode: 32.00” SATELLITE SPEAKERS: Transducer complement: Low Frequency Section: 1 x 10” woofer High Frequency Section: 1 x 1.4” titanium compression driver on a Quadratic Throat Waveguide™ with 75 degrees by 75 degrees coverage pattern Nominal Impedance: 4 Ohms Power Handling, Satellite System: 200W Continuous, 400W Program, 800W Peak Box tuning frequency (Fbox): 84 Hz Frequency Response, 1 meter on-axis, swept-sine in anechoic environment: 88 Hz to 20 kHz Sound Pressure Level, 1 Watt, 1 meter in 1/2 space environment: 101 dB Maximum Sound Pressure Level (1 meter, ½ space): 124 dB Weight: 24 lb Dimensions (H x W x D): 19.6” X 11.83” X 11.83” (Upright, Includes feet) COMPLETE SYSTEM: Active Crossover Frequency: 120 Hz, 24 dB/Octave Maximum Sound Pressure Level (1 meter, half-space): 129 dB Dimensions when in transport orientation, on casters (H x W x D): 43.00” X 20.37” X 23.54” (Includes all feet) Weight (Sub and Satellites Only): 146 lb Speaker Cables: Two 15 foot 16 ga. With 4-pin twist-lock connectors on each end. INTERNAL AMPLIFIER: Subwoofer Amp Power Output: 500W peak available power 250W continuous, into 8 ohms. Satellite Amps Power Output: 250W peak available power 125W continuous, into 4 ohms. Inputs (Line Level): Left channel XLR or 1/4” phone jack combo input (female) Right channel XLR or 1/4” phone jack combo input (female) Input Impedance: 20 k Ohms balanced, 10 k Ohms unbalanced (single-ended) Thru (Outputs, Line Level): Left channel XLR full-range output (male), Right channel XLR full-range output (male) Speaker Level Outputs: Left channel 4-pin twist-lock professional connector, Output Right channel 4-pin twist-lock professional connector Output CONTROLS: Master System Level (Left & Right Gain) Subwoofer Level Control, Ground Lift Switch, Power Switch (On rear of amp panel when the Subwoofer is in use position, with rubber feet on the floor) Nominal amplifier frequency response: +0, -2 dB from 10 Hz to 20 kHz Hum and noise: Greater than 90 dB below rated power DDT dynamic range: Greater than 18 dB THD: T

For capturing audio, the QLXD24/B58 Handheld Wireless Microphone System by Shure is a good choice. It can be used for mid-size events and installations in businesses, hotels, government offices, schools, houses of worship, live performance spaces, and more. It features 24-bit digital audio, network control and AES-256 encryption. The QLXD wireless system is built with switching diversity and automatic channel scan, and has IR sync capabilities to make finding an open frequency quick. Featuring a frequency range of 20 Hz to 20 kHz, it offers more than 60 available channels per frequency band. The handheld also has a backlit LCD display to allow for navigation though the menus and controls. With clearly defined performance, the QLX-D delivers good clean audio and provides professional features for demanding live sound events and installations. The QLXD24/B58A system includes a QLXD4 receiver, QLXD2 Transmitter with Beta58A capsule, PS23 power supply, two 1/2 wave antennas, two 2' BNC cables with bulkhead adapters, zipper bag, two AA alkaline batteries, and rackmount hardware. Specs: Interchangeable Beta58A microphone cartridge 120 dB dynamic range Digital predictive switching diversity receiver to capture the clearest sound 64 MHz tuning bandwidth Up to 17 compatible systems per 6 MHz TV band, and 22 systems per 8 MHz band Easy pairing of transmitters and receivers over IR scan and sync Automatic channel scan Selectable display mode showing group/channel, frequency, or battery runtime Rugged metal construction RF Carrier Frequency Range G50: 470-534 MHz Working Range 328' (100 m) Note: Actual range depends on RF signal absorption, reflection and interference RF Tuning Step Size: 25 kHz, varies by region Image Rejection Greater than 70 dB, typical RF Sensitivity -97 dBm at 10-5 BER Latency Less than 2.9 ms Audio Frequency Response QLXD1: 20 Hz - 20 kHz (±1 dB) QLXD2: Dependent on microphone type Audio Dynamic Range System Gain @ +10: Greater than 120 dB, A-weighted, typical Total Harmonic Distortion (THD) -12 dBFS Input, System Gain @ +10: Less than 0.1% Polarity System Audio: Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 1/4" (6.35 mm) output Operating Temperature Range 0 to 122°F (-18 to 50°C) Note: Battery characteristics may limit this range Storage Temperature Range -20 to 165°F (-29 to 74°C) Note: Battery characteristics may limit this range. Mic Capsule Type Beta 58A Frequency Response 20 Hz to 20 kHz Polar Pattern Cardioid Receiver Housing Steel Power Requirement 12 VDC @ 0.4 A, supplied by external power supply (tip positive) RF Input Spurious Rejection: Greater than 80 dB, typical Connector Type: BNC Impedance: 50 ohms Audio Output Gain Adjustment Range: -18 to +42 dB in 1 dB steps Configuration: 1/4" (6.35 mm), Impedance balanced (Tip=audio, Ring=no audio, Sleeve=ground) XLR: Balanced (1=ground, 2=audio +, 3=audio -) Impedance 1/4" (6.35 mm), 100 ohms (50 ohms Unbalanced) XLR: 100 ohms Full Scale Output: 1/4" (6.35 mm), +12 dBV XLR: LINE setting= +18 dBV, MIC setting= -12 dBV Mic/Line Switch: 30 dB pad Phantom Power Protection: 1/4" (6.35 mm), Yes XLR: Yes Networking Network Interface: Single Port Ethernet 10/100 Mbps Network Addressing Capability: DHCP or Manual IP address Maximum Ethernet Cable Length: 328' (100 m) Dimensions (H x W x D) 1.63 x 7.75 x 5.94" (41 x 197 x 151 mm) Weight 1.71 lb (777 g) Handheld Transmitter Housing Machined aluminum Mic Offset Range 0 to 21 dB (in 3 dB steps) Battery Type Shure SB900 rechargeable Li-Ion or AA batteries 1.5 V Battery Runtime At 10 mW: Shure SB900: up to 10 hours Alkaline: up to 9 hours Audio Input Configuration: Unbalanced RF Output Antenna Type: Integrated Single Band Helical Occupied Bandwidth: Less than 200 kHz Modulation Type: Shure proprietary digital Power: 1 mW or 10 mW Note: See Frequency Range and Ouput Power table, varies by region Dimensions (L x Diam) 10.1 x 2.0" (256 x 51 mm) Weight 12.2 oz (347 g)

For capturing audio the QLXD24/B87A Handheld Wireless Microphone System by Shure is a good choice. It can be used for mid-size events and installations in businesses, hotels, government offices, schools, houses of worship, live performance spaces, and more. It features 24-bit digital audio, network control, and AES-256 encryption. The QLX-D wireless system is built with switching diversity and automatic channel scan, and has IR sync capabilities to make finding an open frequency quick. Featuring a frequency range of 20 Hz to 20 kHz, it offers more than 60 available channels per frequency band. The handheld also has a backlit LCD display to allow for navigation though the menus and controls. With clearly defined performance the QLX-D delivers clean audio and provides professional features for demanding live sound events and installations. The QLXD24/B87A system includes a QLXD4 receiver, QLXD2 Transmitter with Beta 87A capsule, PS23 power supply, two 1/2 wave antennas, two 2' BNC cables with bulkhead adapters, zipper bag, two AA Alkaline batteries, and rackmount hardware. Specs: Interchangeable Beta 87A microphone cartridge 120 dB dynamic range Digital predictive switching diversity 64 MHz tuning bandwidth Up to 17 compatible systems per 6 MHz TV band, and 22 systems per 8 MHz band Easy pairing of transmitters and receivers over IR scan and sync Automatic channel scan Selectable display mode showing group/channel, frequency, or battery runtime Rugged metal construction RF Carrier Frequency Range G50: 470 to 534 MHz Working Range 328' (100 m) Note: Actual range depends on RF signal absorption, reflection and interference RF Tuning Step Size: 25 kHz, varies by region Image Rejection Greater than 70 dB, typical RF Sensitivity -97 dBm at 10-5 BER Latency Less than 2.9 ms Audio Frequency Response QLXD1: 20 Hz - 20 kHz (±1 dB) QLXD2: Dependent on microphone type Audio Dynamic Range System Gain @ +10: Greater than 120 dB, A-weighted, typical Total Harmonic Distortion (THD) -12 dBFS Input, System Gain @ +10: Less than 0.1% Polarity System Audio: Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 1/4" (6.35 mm) output Operating Temperature Range 0 to 122°F (-18 to 50°C) Note: Battery characteristics may limit this range Storage Temperature Range -20 to 165°F (-29 to 74°C) Note: Battery characteristics may limit this range. Receiver Housing Steel Power Requirement 12 VDC @ 0.4 A, supplied by external power supply (tip positive) RF Input Spurious Rejection: Greater than 80 dB, typical Connector Type: BNC Impedance: 50 ohms Audio Output Gain Adjustment Range: -18 to +42 dB in 1 dB steps Configuration: 1/4" (6.35 mm), Impedance balanced (Tip=audio, Ring=no audio, Sleeve=ground) XLR: Balanced (1=ground, 2=audio +, 3=audio -) Impedance 1/4" (6.35 mm), 100 ohms (50 ohms Unbalanced) XLR: 100 ohms Full Scale Output: 1/4" (6.35 mm), +12 dBV XLR: LINE setting= +18 dBV, MIC setting= -12 dBV Mic/Line Switch: 30 dB pad Phantom Power Protection: 1/4" (6.35 mm), Yes XLR: Yes Networking Network Interface: Single Port Ethernet 10/100 Mbps Network Addressing Capability: DHCP or Manual IP address Maximum Ethernet Cable Length: 328' (100 m) Dimensions (H x W x D) 1.63 x 7.75 x 5.94" (41 x 197 x 151 mm) Weight 1.71 lb (777 g) Handheld Transmitter Housing Machined aluminum Mic Offset Range 0 to 21 dB (in 3 dB steps) Battery Type Shure SB900 rechargeable Li-Ion or AA batteries 1.5 V Battery Runtime At 10 mW: Shure SB900: up to 10 hours Alkaline: up to 9 hours Audio Input Configuration: Unbalanced RF Output Antenna Type: Integrated Single Band Helical Occupied Bandwidth: Less than 200 kHz Modulation Type: Shure proprietary digital Power: 1 mW or 10 mW Varies by region Dimensions (L x Diam) 10.1 x 2.0" (256 x 51 mm) Weight 12.2 oz (347 g) Mic Capsule Type Beta 87A: Electret Condenser Frequency Response 20 Hz to 20 kHz Polar Pattern Super Cardioid

For capturing audio, the QLXD24/SM58 Handheld Wireless Microphone System by Shure is a good choice to get the job done. It can be used for mid-size events and installations in businesses, hotels, government offices, schools, houses of worship, live performance spaces, and more. It features 24-bit digital audio, network control, and AES-256 encryption. The QLXD wireless system is built with switching diversity and automatic channel scan and has IR sync capabilities to make finding an open frequency quick. Featuring a frequency range of 20 Hz to 20 kHz, it offers more than 60 available channels per frequency band. The handheld also has a backlit LCD display to allow for navigation though the menus and controls. With clearly defined performance the QLXD delivers good clean audio and provides professional features for demanding live sound events and installations. The QLXD24/SM58 system includes a QLXD4 receiver, QLXD2 Transmitter with SM58 capsule, PS23 power supply, two 1/2 wave antennas, two 2' BNC cables with bulkhead adapters, a zipper bag, two AA Alkaline batteries, and rackmount hardware. Specs: Interchangeable SM58 microphone cartridge 120 dB dynamic range Digital predictive switching diversity receiver to capture the clearest sound 64 MHz tuning bandwidth Up to 17 compatible systems per 6 MHz TV band, and 22 systems per 8 MHz band Easy pairing of transmitters and receivers over IR scan and sync Automatic channel scan Selectable display mode showing group/channel, frequency, or battery runtime Rugged metal construction RF Carrier Frequency Range G50: 470 to 534 MHz Working Range 328' (100 mm) Note: Actual range depends on RF signal absorption, reflection and interference RF Tuning Step Size: 25 kHz, varies by region Image Rejection > 70 dB, typical RF Sensitivity -97 dBm at 10-5 BER Latency Audio Frequency Response QLXD2: Dependent on microphone type Audio Dynamic Range System Gain @ +10: Greater than 120 dB, A-weighted, typical Total Harmonic Distortion (THD) -12 dBFS Input, System Gain @ +10: Less than 0.1% Polarity System Audio: Positive pressure on microphone diaphragm produces positive voltage on pin 2 (with respect to pin 3 of XLR output) and the tip of the 1/4" (6.35 mm) output Operating Temperature Range 0 to 122°F (-18 to 50°C) Note: Battery characteristics may limit this range Storage Temperature Range -20 to 165°F (-29 to 74°C) Note: Battery characteristics may limit this range. Receiver Housing Steel Power Requirement 12 VDC @ 0.4 A, supplied by external power supply (tip positive) RF Input Spurious Rejection: > 80 dB, typical Connector Type: BNC Impedance: 50 ohms Audio Output Gain Adjustment Range: -18 to +42 dB in 1 dB steps Configuration: 1/4" (6.35 mm), Impedance balanced (Tip=audio, Ring=no audio, Sleeve=ground) XLR: Balanced (1=ground, 2=audio +, 3=audio -) Impedance: 1/4" (6.35 mm): 100 ohms (50 ohms Unbalanced), XLR: 100 ohms Full Scale Output: 1/4" (6.35 mm), +12 dBV XLR: LINE setting= +18 dBV, MIC setting= -12 dBV Mic/Line Switch: 30 dB pad Phantom Power Protection: 1/4" (6.35 mm), Yes XLR: Yes Networking Network Interface: Single Port Ethernet 10/100 Mbps Network Addressing Capability: DHCP or Manual IP address Maximum Ethernet Cable Length: 328' (100 m) Dimensions (H x W x D) 1.63 x 7.75 x 5.94" (41 x 197 x 151 mm) Weight 1.71 lb (777 g) Handheld Transmitter Housing Machined aluminum Mic Offset Range 0 to 21 dB (in 3 dB steps) Battery Type Shure SB900 rechargeable Li-Ion or AA batteries 1.5 V Battery Runtime At 10 mW: Shure SB900: up to 10 hours Alkaline: up to 9 hours Audio Input Configuration: Unbalanced Maximum Input Level: 145 dB SPL (SM58), typical (1 kHz @ 1% THD) RF Output Antenna Type: Integrated Single Band Helical Occupied Bandwidth: Modulation Type: Shure proprietary digital Power: 1 or 10 mW Dimensions (L x Diam) 10.1 x 2.0" (256 x 51 mm) Weight 12.2 oz (347 g) without batteries Mic Capsule Type SM58 Frequency Response 20 Hz to 20 kHz Polar Pattern Cardioid

PRECISION TUNED BY THE SPEAKER BRAINS AT EAW: The new C Series passive Loudspeakers represent Mackie's first lightweight passive speakers tuned exclusively by the EAW loudspeaker engineering team. We're talking about the same team with more than 25 years of high-output loudspeaker expertise, having created loudspeaker systems for critical applications as diverse as the Super Bowl, Iron Maiden, and the Pope. And although loudspeakers for these mega-systems cost exponentially more than the stalwart C300z, many of the same concepts applied, namely: designing custom 12" LF drivers with a frequency range from 50 Hz - Hz and a 3" voice coil that can take a pounding. And a 1.75" High-Frequency titanium Driver and Horn providing a wide, controlled dispersion pattern and precise reproduction of the critical Hz - Hz upper mid-range and high frequencies. CROSSOVERS TUNED TO PERFECTION: Tuning a crossover (i.e. voicing a system), involves dozens of critical decisions that many manufacturers overlook. In the end, it is all about balancing the design so that you get the best subjective results from the speaker while maintaining a good technical implementation. The crossover in the C Series is a unique Low Impedance Compensated Crossover (LICC) design with an asymmetrical slope. With EQ and crossover points meticulously chosen so that beamwidth patterns match in both drivers, C Series loudspeakers offer natural sound at all volume levels. ULTRA-WIDE DISPERSION: Ever been to a show where the music sounds great in front, but craps out once you get to the back or sides of the room? We have, and that's why we gave the C300z a multi-cell horn throat aperture. Sure, it's hard to say, but what it does is allow for much wider and more even dispersion of high and mid frequencies—so the wallflowers get the same great listening experience as those up front.  BETTER THAN YOUR AVERAGE BOX: Anyone with a factory can build a box and stick some speakers in it (and that's just what many do). But low-frequency transducers in square boxes can create resonances that reflect off the rear wall and pass through the woofer cone out of phase, and ready to mess up your sound. The C300z enclosure is an asymmetrical monocoque design with no parallel surfaces, causing mid and high frequency resonance's to be reflected at angles into internal damping materials, instead of interfering with the woofer doing its thing.. SUPERB FLOOR MONITOR: A good floor monitor plays loudly without generating feedback through vocal microphones. A poor floor monitor, on the other hand, will generate feedback just about the time you turn it up to a useable level. Floor monitor feedback is often caused by uneven frequency response and dispersion; some frequencies arrive at the microphone much louder than others. These "spikes" are what trigger feedback as the floor monitor volume is increased. The C300z has incredibly smooth, spike-free response and dispersion over a wide range of treble frequencies. So you can increase its volume without boosting those nasty, feedback-inducing spikes. Without extensive tuning, no passive speaker or specialized floor wedge in this class can even come close. ACOUSTIC PERFORMANCE: SYSTEM SPECIFICATIONS: Frequency Response (–3 dB): 55Hz – 18kHz  Frequency Range (–10 dB): 45Hz – 20kHz  Maximum SPL Long-term @ 1m: 123dB  Crossover Frequency: Hz  AUDIO: Input Type: Speakon®-style NL4 jack 1/4-inch TS phone jack  Input Impedance: 8 ohms  Power Handling: (RMS) 300 watts, (peak) 750 watts FEATURES: Portable Precision Passive loudspeaker with 1.75" HF compression driver and 12" LF transducer  HF compression driver mounted on a multi-celled aperture, with a constant directivity horn for room-wide 90° x 45° dispersion  Precise reproduction of critical upper mid-range and high frequencies  Tough, impact-resistant enclosure with sturdy handles, pole-mount, and integrated rigging points  Designed for optimum performance with Mackie powered mixers and power amplifiers  750W peak power handling  Three setup configurations: pole mount, flyable and wedge  Passive version of the best-selling SRM year limited guarantee. For more info on this product please click here

Portable design: Small pocket radio (54 x 91 x 20mm), weights only 65g (without batteries). Light and easy to carry around, suitable for indoor listening and outdoor activities such as walking, camping, climbing, etc. Includes portable bag (no strap, wallet, etc.) Easy to use: 1) Just three control buttons: volume knob, tuning knob and power/band switch button. 2) With the signal indicator, tuning couldn't be simpler! Excellent Reception: 1) Retractable antenna, enhanced AM/FM band broadcast receiving capability and internal magnetic antenna. A small radio with excellent reception! 2) Supports FM (87 - 108 MHz) / AM (530 - 1600 kHz). Suitable for most countries in the world. No matter which country you are in, you can easily listen to the local stations. Perfect sound quality: Built-in speaker, clear sound, supports standard 3.5mm headphone jack. (Notes: no headphones included, no USB interface, AUX input or TF card slots). Replaceable battery: uses 2 AAA batteries (not included). (Notes: does not support main power supply or battery charging). Specifications: 1. Product Name: DEGEN-DE333 Radio 2. Size: 54 x 91 x 20mm 3. Weight: 65g (without batteries) 4. Built-in speaker: D 30mm 5. Power supply: 2 AAA batteries (not included) 6. Retractable antenna: up to 7 inches long 7. Frequency indication: red frequency pointer, green LED signal indicator 8. Package includes: 1) radio, 2) user manual, 3) portable bag 9. After-sales service: 1) reply within 24 hours (working day), 2) 30-days no-questions-asked exchange or returns policy; 3) 1-year warranty Features: 1. Supports AM/FM Bands: FM (87 - 108 MHz), AM (530 - 1600 KHz) 2. Manual Tuning Mode 3. Manual Volume Adjustment 4. Power/Band Switch Button: switch button for turning ON/Off and switching between bands (AM/FM). 5. Listen to Music: 1) built-in speaker, 2) 3.5mm stereo headphone jack (headphones not included)

A great Radio system: Type: Mono/Stereo Tuner 24 Channel Presets Tuning Bands: FM, AM Tuning Scale: Digital FM Tuning Range: 87.5 to 108 MHz AM Tuning Range: 530 to 1620 kHz Sensitivity: 1.5uV (FM), 20uV (MW), 50uV (LW) Signal to Noise Ratio: 65dB (FM) Distortion: 0.3% (FM) Selectivity: 65dB (FM), 50dB (MW), 50dB (LW) Frequency response: 20Hz to 15kHz (FM) Output: 300mV Dimensions: 430 x 69 x 290mm Weight: 2.4kg Finish: black

    ENO ET-37 LCD Clip-on Electronic Guitar Chromatic Bass Violin Ukulele Tuner This is the ENO ET-37 LCD Mini Clip-on Electronic Guitar Chromatic Bass Violin Ukulele Tuner. Description: Color: Black Turning items: Chromatic, guitar, bass, violin, ukulele, wind instrument Tuning range: A0 (27.5 Hz) - C8 (4186.0 Hz) A4 frequency: 430-450Hz Key: C, F, Bb, Eb Flat for tuning Guitar: b and bb. Power: 1 * CR2032 battery Display size: 1.6 * 2.9cm / 0.6 * 1.1in Product weight: 21g / 0.74oz Package size: 5.4 * 1.8 * 11.9cm / 2.1 * 0.7 * 4.7in Package weight: 36g / 1.3oz Features: Small and exquisite appearance, it is convenient to carry. Super bright backlight, LCD display, it can provide excellent visibility. 360 degree rotatable clip, it can adjust at your suitable angle, simple and practical. With a clip, it is easy to fix on the instrument. It can be used for the tuning of guitar, chromatic, bass, violin, ukulele and wind instrument. Tuning Accuracy Indicator: Flat: The indicator points to the left, showing orange; Sharp: The indicator points to the right, showing orange; In tune: No Indicator is showed on the screen, the backlight is green. Package Includes: 1 x Electronic Tuner          

This is the ENO ET-37 LCD Mini Clip-on Electronic Guitar Chromatic Bass Violin Ukulele Tuner. Description: Color: Black Turning items: Chromatic, guitar, bass, violin, ukulele, wind instrument Tuning range: A0 (27.5 Hz) - C8 (4186.0 Hz) A4 frequency: 430-450Hz Key: C, F, Bb, Eb Flat for tuning Guitar: b and bb. Power: 1 * CR2032 battery Display size: 1.6 * 2.9cm / 0.6 * 1.1in Product weight: 21g / 0.74oz Package size: 5.4 * 1.8 * 11.9cm / 2.1 * 0.7 * 4.7in Package weight: 36g / 1.3oz Features: Small and exquisite appearance, it is convenient to carry. Super bright backlight, LCD display, it can provide excellent visibility. 360 degree rotatable clip, it can adjust at your suitable angle, simple and practical. With a clip, it is easy to fix on the instrument. It can be used for the tuning of guitar, chromatic, bass, violin, ukulele and wind instrument. Tuning Accuracy Indicator: Flat: The indicator points to the left, showing orange; Sharp: The indicator points to the right, showing orange; In tune: No Indicator is showed on the screen, the backlight is green. Package Includes: 1 x Electronic Tuner

JOYO JT-01 Chromatic Tuner Chromatic Acoustic Guitar Tuner Description: Item name: Guitar Tuner A4 Frequency: 440Hz Screen: LCD display. Tuning type: Guitar, Chromatic, Bass, Violin, Ukulele. Tuning Item: Chromatic, Guitar, Bass,Violin, Ukulele C, Ukulele D Tuning range: A0(27.5Hz)--a3(1760Hz). Tuning accuracy: ±0.5cent. Screen Size: 23mm*16mm. Feature: 360 degree tuner. Old-school tuner design,still reliable and stable. Powered by one CR2032 button battery (included). Battery door with screw-fixed function, to prevent the children from swallowing batteries. Package Included: 1 x Guitar Tuner

The MYTHO 6 from RCF is an active 2-way reference studio monitor, ideal for home or professional studios. The die-cast aluminum cabinet houses a 6.5" neodymium woofer and a 1" aluminum dome tweeter to provide crisp, detailed sound with a wide frequency response. Internal Class-AB amplifiers provide a total power of 300W for a strong performance with low distortion. The cabinet has a reflection-free design, a low-distortion reflex port for extended bass, and a constant directivity waveguide to provide a wide "sweet spot". The speaker's rear panel has an XLR/TRS combo input, allowing you to connect to a wide variety of systems and devices. The MYTHO 6 also features DSP technology that provides fine crossover tuning, accurate EQ, soft signal clipping, and transducer protection. A set of DIP-switches lets you adjust bass and treble settings, EQ, woofer/tweeter muting, and more. The speaker also has a selectable operating voltage for worldwide use. Die-cast aluminum cabinet features a reflection-free design 6.5" neodymium woofer and a 1" aluminum dome tweeter to provide crisp, detailed sound with a wide frequency response Internal Class-AB amplifiers provide a total power of 300W for a strong performance with low distortion Low-distortion reflex port for extended bass Constant directivity waveguide provides a wide "sweet spot" Rear panel features an XLR/TRS combo input, allowing you to connect to a wide variety of systems and devices DSP technology provides fine crossover tuning, accurate EQ, soft signal clipping, and transducer protection A set of DIP-switches lets you adjust bass and treble settings, EQ, woofer/tweeter muting, and more Selectable operating voltage for worldwide use For More Info: http://www.rcf.it/products/recording/mytho-reference-monitors/mytho-6

Features: Digital Signal Process(DSP) for better sensitivity, selectivity Auto Tuning Storage(ATS) for easy operation Multifunctional, digital tuning knob for time setting, frequency adjusting and memory address selecting Equipped with an external antenna, can significantly improve the reception of FM Four channel selection modes: Manual search; Manual search for prestored radio channels; Auto search for previewed radio channels; Auto search for prestored radio channels 100 station preset memories Digital clock & Thermometer 12/24-hour clock; Auto power-on based on Real Time Clock Auto start & sleep timer Charge MP3 or cellphone with USB jack Line-in jack, used as a loudspeaker for your notebook or other small-sized music players Can play audio files like MP3, WMA Large-diameter loudspeaker for loud and excellent sound 2 x AA batteries for time display(battery not included) Specifications: Frequency: FM 87-108 / 76-108MHz Sensitivity: ≤3μV Signal selectivity: ≥60dB FM stereo crosstalk: ≤30dB Speaker: Φ77mm, 8Ω, 1W Power supply: AC 220V 50Hz USB output: 5V 300mA Size: 180 x 145 x 53mm (7 x 5.7 x 2 in) Weight: 560g Package Included: 1 x TECSUN MP-300 Radio 1 x AUX Audio Cable 1 x Chinese Manual

The NYXL Nickel Wound Super Light Top/Regular Bottom guitar strings come in gauges 9-46.D'Addario NYXL guitar strings will bend farther, sing louder, and stay in tune better than other strings. Envisioned, perfected, and manufactured by D'Addario in New York, this newly engineered, break-resistant high-carbon steel core and plain steel alloy delivers a whole new level of freedom, confidence, and power.NYXL's provide more strength and 131% more tuning stability by utilizing a completely reinvented wire drawing process and revolutionary corrosion-resistant tin coating application. The reformulated nickel-plated string windings have greater magnetic properties resulting in higher output and enhanced mid-range frequency response for more presence and crunch.The NYXL0946 set is designed for maximum flexibility.FEATURESFeatures D'Addario's exclusive revolutionary high carbon steel alloyOffers more strength, break-resistance, and improved tuning stabilityWound strings contain enhanced mid-range frequency response in the 1-3.5kHz range - boosting presence and crunch

Description: WouXun KG-UVD1P VHF UHF Dual Band Dual Display Dual Standby Waterproof IP55 Two-way Radio Walkie Talkie Features: Dual Band, Dual Frequency, Dual Display and Dual Standby. Supports VOX transmission. VHF&UHF, UHF&UHF or VHF&VHF working modes. Digital FM radio (Automatic tuning and storing, radio frequency display). High/Low power selection. Wide/Narrow Bandwidth selection (25KHz/12.5KHz). Channel Name edit and display. 105 groups D.C.S/50 groups CTCSS. Stopwatch Function. Low-voltage voice prompt. Busy Channel Lockout. Transmit Over Timer. Multi step frequency: 5K/6.25K/10K/12.5K/25K/50K/100K Keyboard lock (Auto/Manual). Multiple scan modes. Wire clone function. Bright flashlight illumination. Programmable by computer. SOS Function. 1750Hz tone. DTMF Encoding Function. VOX transmission. English voice guide. Specification: Frequency range Frequency range can be suitable for different countries or areas: 136-174/400-470MHz (RX/TX) 136-174/450-520MHz (TX/TX) 66-88/400-470MHz (TX/TX) FM: 76-108MHz (RX) Memory Channels 128 Channels Frequency Stability ±2.5ppm Operating Temperature -30°C to +60°C Waterproof IP55 Antenna Impedance 50 Dimension 58 x 105 x 38mm Weight 250g Transmitter Frequency stability ±2.5ppm RF Carrier Power Within pre-determined value±7.5dB Max. Frequency Deviation Channel space: 25KHz ±5KHz Channel space: 12.5KHz ±2.5KHz Audio Modulation +3dB(pre-emphasis by 6dB between 0.3-3KHz) Adjacent channel power Channel space: 25KHz ≥ 70dB Channel space: 12.5KHz ≥ 60dB Spurious Radiation ≤30dBm Inter modulation Attenuation ≥40dB Modulation Distortion ≤10% Residual FM ≤-35dB Residual FM ≤3% Receiver Sensitivity(12dB SINAD) 0.16μV Squelch rejection Sensitivity ≤0.8μV Squelch Sensitivity ≤0.2μV Audio output power 500mW Audio Distortion ≤5% Audio Response (300-3000Hz)+1 to -3dB Co-channel Rejection ≥-8.0dB Performance of Amplitude Limited ≤3 Adjacent Channel Selection Channel space: 25KHz ≥ 70dB Channel space: 12.5KHz ≥ 60dB Inter-modulation ≥65dB Resistance ≥84dB Spurious Radiation 9Khz-1GHz ≤ -57dBm 1GHz-4GHz ≤ -47dBm Package includeds: 1 x Wouxun KG-UVD1P Dual Band Radio 1 x 1400mAh Li-ion Battery 1 x High Gain Antenna 1 x Charger(EU / US Plug for Optional and also come with an adapter according to your country~) 1 x Belt clip 1 x Hand Strap 1 x Car Charger 1 x English User Manual Details pictures:

Metro Tuner "JOYO JMT-550" - Built-in Amplifier + Drumbeats Metro Tuner with a built-in Amplifier and Drumbeats will help you achieve the sound you have desired. Introducing the "JOYO JMT-550" metro tuner with a built-in amplifier and drumbeats will surely change the way you play and listen to music. This tuner is not like a regular metronome and has additional functions for Rhythm Play as well as amplifier monitor and also MP3 input. This simple to use electronic metronome has buttons to control the tempo; and also produce tuning notes, at a range of 410 to 460Hz. Tones can differ in pitch, volume, and/or timbre to demarcate downbeats from other beats, as well as compound and complex time signatures. There is even a pull out stand to help keep this apparatus up right when in use.   Manufacturer Specifications General Functions: Tuner, Amplifier Monitor, Rhythm Play, Metronome, MP3 Input Beat: Rhythm Play: 40 types A4 Frequency: 410 to 460Hz Tuning: Chromatic Semitones: b, bb Tuning Range: 0A (27.5Hz)-8C (Hz) Power Source: Power Adapter or 6F22 Battery (Not Included) Ports 3.5mm Audio Out Port DC IN AUX IN Dimensions Main product dimensions: 121x74x23mm (L x W x D) Main product weight: 106g Product Notes Batteries Not Included. Power Adapter Not Included. Package Contents Tuner User Manual (Product Specific)  

ICF-SW10 12 Band Worldwide Receiver by Sony. This 12-band receiver lets you listen to a worldwide range of frequencies at home and abroad, including FM stereo, MW, LW, and shortwave bands 1 to 9. Easy analog tuning simplifies tuning in desired stations, while a tuning indicator accurately indicates center frequency.

Musedo Clip-on Electric Tuner & Metronome Guitar Chromatic Bass Violin Ukulele Universal Multifunction Portable Features: Worked as Tuner & Metronome, good helper for novice. Small and exquisite appearance, it is convenient to carry. Super bright backlight, LCD display(3.7 * 2.3cm), it can provide excellent visibility. 360 degree rotatable clip, it can adjust at your suitable angle, simple and practical. With a clip, it is easy to fix on the instrument. Auto power off function, the device will turn off automatically if there is no signal present or operation in 5mins. It can be used for the tuning of guitar, chromatic, bass, violin and ukulele C. Tuning Accuracy Indicator: Low: The indicator points to the left, showing orange; High: The indicator points to the right, showing orange; In tune: The indicator points to the middle, showing green. Specifications: Color: Black Turning items：Chromatic, guitar, bass, violin, ukulele C Tuning range: A0 (27.5 Hz) - C8 (4186.0 Hz) A4 frequency: 430-450Hz Beat: 0-9 Tempo: 30-250bpm Precision: ±1 cent Power: 1 * CR2032 battery Power consumption: Turning mode: ＜ 12mA; Metronome mode: ＜20mA Display size: Approx.3.7 * 2.3cm / 1.5 * 0.9in Product weight: 32g / 1.1oz Package size: 4.4 * 4 * 8.4cm / 1.7 * 1.6 * 3.3in Package weight: 43g / 1.5oz Package List: 1 * Electronic tuner 1 * User manual (English)

Joyo Clip-On Backlit Tuner For Guitar, Bass, Violin and Ukulele Please let us know whether you want Red or Black. A4 Frequency: 430-450Hz Tuning: Chromatic, Guitar, Bass, Violin and Ukulele Tuning Modes: MIC, CLIP Semitones: b, bb Tuning Range: 0A(27.5Hz)-8C(4186.01Hz) Weight: 45g Dimensions: 55(L)X100(H)X45(W)mm Power: CR2032 Battery (1)    

MUSEDO CLIP-ON ELECTRIC TUNER & METRONOME GUITAR CHROMATIC BASS VIOLIN UKULELE UNIVERSAL MULTIFUNCTION PORTABLE - I325 Features: Worked as Tuner & Metronome, good helper for novice. Small and exquisite appearance, it is convenient to carry. Super bright backlight, LCD display(3.7 * 2.3cm), it can provide excellent visibility. 360 degree rotatable clip, it can adjust at your suitable angle, simple and practical. With a clip, it is easy to fix on the instrument. Auto power off function, the device will turn off automatically if there is no signal present or operation in 5mins. It can be used for the tuning of guitar, chromatic, bass, violin and ukulele C. Tuning Accuracy Indicator: Low: The indicator points to the left, showing orange; High: The indicator points to the right, showing orange; In tune: The indicator points to the middle, showing green. Specifications: Color: Black Turning items：Chromatic, guitar, bass, violin, ukulele C Tuning range: A0 (27.5 Hz) - C8 (4186.0 Hz) A4 frequency: 430-450Hz Beat: 0-9 Tempo: 30-250bpm Precision: ±1 cent Power: 1 * CR2032 battery Power consumption: Turning mode: ＜ 12mA; Metronome mode: ＜20mA Display size: Approx.3.7 * 2.3cm / 1.5 * 0.9in Product weight: 32g / 1.1oz Package size: 4.4 * 4 * 8.4cm / 1.7 * 1.6 * 3.3in Package weight: 43g / 1.5oz Package List: 1 * Electronic tuner 1 * User manual (English)

Description: A4 Frequency: 430-450Hz Tuning mode: Automatic Tuning error:±0.5 cent Power: button battery Tuning Items: Chromatic, Guitar, Bass, Violin, Ukulele,Banjo, Mandolin, Viola, Cello, Bass Guitar, Fiddle, Dulcimer, Autoharp, Saxphone etcTuning Range: A0(27.5Hz)-a3(1760Hz) Color:Black Dimension: 2.05" x 3.39" x 0.98" (52(L)×86(H)×25(W)mm) Weight:33g Package included: 1 x JOYO JT-12B Clip-On Chromatic/Guitar/Bass/Violin Tuner 1 x CR2032 battery 1 x User manual