5pcs 4mm power volume

5Pcs HC-12 433 SI4463 Wireless Serial Module Remote 1000M With Antenna Note: HC-11 cannot communicate with the HC-12, they work independently, in pairs Features: Supply voltage: 3.2V~5.5V. (If the module you want to work long hours in the emission state, it is recommended that when the supply voltage exceeds 4.5V threaded a 1N4007 diode to prevent module built-in LDO heated) Default address range (open field test): About 600m (maximum communication distance adjustable reach 1000m, the baud rate is 5000bps) Default idle current: 16MA (In different working modes operating current is different) Module dimensions: 27.8 x 14.4 x 4mm Operating frequency range: 433.4-473.0MHz, up to 100 channels of communication The maximum transmit power: 100mW (settable) Module support software upgrade Default factory settings: Mode FU3, baud rate is 9600bps, communication channels CH001 (433.4M) Package included: 5 x HC-12 433 Serial module AT command set:   Module parameters, AT command set AT command is used to set the parameters of the function module and switching modules need to exit the setting mode after setting to take effect. Meanwhile, modify the parameters and functions, power-down is not lost.   Enter the command mode: The first entry mode - normal use (has the power) in the first 5-pin "SET" is set low; The second mode of entry - power, 5th pin "SET" again first set low on power. Both methods can make the module into AT command mode, release ("SET" pin is not connected low) to exit command mode. After the exit command mode, if you change the module function, the function will be cut to the appropriate state. The second way is fixed in serial format 9600, N, 1 into the AT.   Instructions: 1. AT Test instructions Example: Send module commands "AT", the module returns "OK".   2. AT + Bxxxx Change the serial port baud rate command. You can set the baud rate is 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps and 115200bps. The factory default is 9600bps. Example: Set the module serial port baud rate is 19200bps, please send module command "AT + B19200", the module returns "OK + B19200".   3. AT + Cxxx Change the wireless communication channel, selectable from 001 to 127 (more than 100 radio channels after the communication distance not guaranteed). The default value is 001 radio channels, operating frequency is 433.4MHz. Step channel is 400KHz, the operating frequency of the channel 100 is 473.0 MHz.   Example: Set module to channel 21, please send module command "AT + C021", the module returns "OK + C021". After exiting the command mode, the module in the first 21 channels, operating frequency is 441.4 MHz. Note: Because the wireless receiver module sensitivity HC-12 is relatively high, the baud rate is greater than when air 58000 bps, 5 must be shifted to the adjacent channel use. When the air baud rate is not greater than 58000 bps, if the short distance (10 meters) communication, but also need to stagger five adjacent channel use.   4. AT + FUx Change the module serial pass-through mode, there FU1, FU2 and FU3 three modes. Module default mode is FU3, two serial pass-through mode module must be set to the same communication. See detailed above, "wireless serial pass-through" part. Example: Send module commands "AT + FU1", the module returns "AT + OK".   5. AT + Px The default setting is 8, maximum transmit power, communication distances. Transmit power level is set to 1, the minimum transmission power. In general, the transmission power of each drop 6dB, communication distance will be reduced by half. Example: Send module commands "AT + P 5", the module returns "OK + P5". After exiting the command mode, the module transmit power is +11 dBm. Package included: 1 x HC-12 module

Feature:   Onboard 2W mono amplifier (5V power supply up to 3W) can directly connected speakers (recommended with 4Ω3W speakers), 3.5mm gold-plated headphone jack can be accessed by headphones or external audio. With MicroUSB power supply interface, using mobile bank power or USB charger power supply, can also be used 3.7V lithium battery, USB 5V power supply. Support TF card (mobile phone memory card), U disk playback mode. With a speaker terminal without soldering, easy wiring.   1) Support MP3 format, power automatically play, led status turn to red. 2) Support U disk (tested with 32G), TF card (tested with 16G) playing mode, power default TF card mode, if the TF card does not exist automatically jump to U disk mode, and both devices are installed, you can manually set the playback mode, please refer to the key operation instructions.   Key operation instructions:   "Prev / V--" key: "short press" to switch "Previous" song, "long press" to switch "volume down" "Next / v ++" key: "short press" to switch "next song", "long press" to switch "volume increase" "P / P / Mode" key: "short press" to "play / pause" switch, "long press" for the U disk, TF card "mode" select "Repeat" key: "short press" for the "single / full song" cycle switch (no long press function)   Note:   1. Long press time about 2S 2. If you use U disk mode, the recommended 5V power supply, some U disk does not support 3.7V power supply.   Specifications:   Power supply range: 3.7 - 5.5V Product size: 45mm * 36mm   Package includes:   5 x MP3 Lossless Decoder Board

Description: This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a welcome upgrade to basic "LM386" amps! CJMCU The A+ and A- inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the Audio- pin to ground. The output is "Bridge Tied" - that means the output pins connect directly to the speaker pins, no connection to ground. The output is a high frequency 250KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly. CJMCU Comes with a fully assembled and tested breakout board. We also include header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach/detach your speaker. You will be ready to rock in 15 minutes! Features: - Output Power: 2.5W at 4Ω, 10% THD, 1.5W at 8Ω, 10% THD, with 5.5V Supply - 50dB PSRR at 1KHz - Filterless design, with ferrite bead + capacitors on output. - Fixed 24dB gain, onboard trim potentiometer for adjusting input volume. - Thermal and short-circuit/over-current protection - Low current draw: 4mA quiescent and 1uA in shutdown mode Note: Speaker is not included, use any 4 ohm or greater impedance speaker. Package included: 5 x Audio Power Amplifier

Buy 5pcs PAM8403 2 Channel USB Power Audio Amplifier Module Board 3Wx2 Volume Control for R190.91

Buy 5Pcs Mini PAM8403 3Wx2 5V Dual Channel USB Power Audio Amplifier Board Volume Control for R192.00

Specifications: Color: Black Shape: Cylindrical Capacitance: 10 Farad Max Voltage: 2.7V ESR: 60mΩ permissible voltage: 2.5V Lead wire type: Same direction Diameter: 10mm Length: 26mm Allowable deviation: -20~40 (%) Dielectric material: Super farad Frequency: Low frequency Application scope: Low voltage Features: - Good quality - High cost performance - Low temperature and low internal resistance and low leakage current - The volume is small, but the capacity is big. The capacity is bigger than the same volume electrolytic capacity about 30~40 times. - The power density of the capacitor is 10~100 times of the battery. It can even reach about 10kw/kg. - Charging speed is quick. - With super long life which is up to more than 100 thousand times, and is more than 10-100 times the battery. - Less pollution. Application for: - CPU intelligent home appliance, meter, tax control machine, controller, air conditioning, recorder, MP3, car audio, telephone, solar lights, real-time clock etc. - Power supply of small power devices, such as: intelligent water meter, gas meter, disinfection cabinet, electronic door locks, solar equipment, digital set-top boxes, toys, etc.; - Electric starting system, with the battery used in various internal combustion engines such as cars, tanks, diesel locomotives, can effectively protect the battery and prolong its service life, reduce the power loss with capacity, especially in low temperature and battery case, ensure reliable start Package included: 5 x Super farad capacitor

Description: Stereo Bluetooth 12V/5V lossless WAV music decoder, WMA / MP3 / FM speaker panel modules, support breakpoint memory Features: 1. Support USB, SD, support for external signal directly switch 2. Support for stereo Bluetooth (Bluetooth3.0EDR) 3. Support USB / SD / Bluetooth / FM / LINE switch automatically. 4. Support MP3 / WMA / WAV lossless songs. 5. Support USB / SD card switch, switch songs song selection 6. Support Bluetoot the song, the next song, adjust volume, EQ, play / pause, mute, shut down. 7. Support FAT16, FAT32 file system. 8. Support MP1 Layer3, MP2 Layer3, MP3 Layer3 version of the song. 9. Support 32-320kbps of MP3 songs. 10. Support power and memory function, continue playing the song played before the power and volume. 11. Support cycle mode 12. Power supply: DC 12V: 7-12V, DC5V: 3.7-5V 13. Panel dimensions: 92 * 35 * 40mm How to connect: Connection: 2P circuit board electrically connected to 12V (GND Ground, + 12V positive); FM: ANT FM radio antenna connected to the welding hole; The audio output: 5P row seat then press the icon audio output R / L / GND; and your amplifier board R / L / GND pair are connected. Or connected to the AUX input jack The audio input (AUX): 3P-row seat according to the illustrated audio inputs L-IN / GND / R-IN Note: Can not connect two power supply in the same time (5V / 12V choose one) Package included: 5 x Decoding panel 5 x Remote control

Description: 1. The on-board TDA7266 audio power amplifier chip, double track 7W + 7W, suitable for 4-8ohm 5-15W speakers 2. The main pin has led chip, convenient external device control, on-board 2 way 5.08(mm) pitch 2P terminal, represent left and right channel output 3. The on-board dial potentiometer, can adjust the output volume 4. Support DC socket, terminal blocks, row needles 3 power input mode, the default is DC socket, working voltage: 3-18V 5. The board size: 45(mm)x33(mm) Package included: 5 x TDA7266 Audio Power Amplifier Module

Description: 1. On-board TDA2030A audio power amplifier chip. 2. Mono 18 w power amplifier circuit design. 3. On-board speaker terminal block 4 On-board 10k adjustable resistance, can adjust the volume of the amplification. 5. On-board power light. 6. Chip has lead to the main pin, can directly input audio signal. 7. Working voltage: 6 -12 v. 8. Board size: 31.6 (mm) x23.2 (mm). Package included: 5 x TDA2030A Audio Amplifier Module

Feature: 1. On-board LM386 Chip 2. 20 times gain circuit design 3. On-board speaker wiring Block 4. On-board 10K variable resistor, you can adjust the volume of the amplifier 5. On-board power indicator 6. The chip pin was leaded, can be directly input audio signal 7. Operating voltage: 5 ~ 12V 8. Size: 41mm*13mm Package included: 5 x LM386 Module 20 Times Gain Audio Amplifier Module

Features: 1. Onboard LM386 Chip 2. 200 multiplier benefits circuit design 3. On-board speaker wiring block 4. On-board 10K variable resistor, you can adjust the volume of the enlarged 5. On-board power indicator 6. The chip pin leads, can be directly input audio signal 7. Operating voltage: 5 - 12V 8. Board size: 41 x13mm Package includes: 5 x LM386 audio amplifier module

Features: Support sampling frequency (kHz):8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48 Support file format:MP3/WAV Support Micro SD card, Micro SDHC Card 30 class adjustable volume UART TTL serial control playback mode, baud rate is 9600bps Power supply can be 3.2 ~ 5.2VDC Size: 43mm x 25mm Package included: 5 x YX6300 Module

Estimated delivery time: working days (Imported from the UK) - T&C's Apply Please note that all Christmas gift orders need to be placed before the 14th of November to ensure that they are delivered to you in time. This item includes free delivery within South Africa. Handheld portable recorder Built-in stereo condenser omnidirectional microphones with sensitivity up to 125dB SPl Up to 96kHz/24-bit WAV (BWF) linear PCM recording Stereo MP3 recording from kbps bit rate Peak Reduction function, optimized for music recording, automatically sets the gain of while recording limiter and low-cut filter to help prevent distortion Automatic or manual level setting Self timer recording starts recording 5 or 10 sec. after pressing the record button for waiting until you are ready Auto and manual track increment Variable speed playback (%) without changing the pitch loop and repeat playback level Align feature prevents uneven volume levels during playback Playback EQ setting Editing function (Divide and delete) Up to 99 mark points on each file Chromatic tuner 1/8" stereo mic/line input USB 2.0 port for transfer to PC and external power Up to 2-second pre recording buffer Jump back function returns to previous point with one action ( sec.) 1/8" headphone/line output Built-in speaker microSD (64MB - 2GB)/microSDHC (4GB - 32GB) card slot (2GB card included) Powered by 2 AA batteries, AC adapter (optional: PS-P515U), or USB bus power Tripod socket hole Dimensions 2-3/8 x x x x 25.4mm) Weight oz (115g)

Amplifier Power: 75 watts RMS continuous, 150 watts peak built-in. Controls: Volume, frequency roll-off, phase invert Auto power off/on: Yes – auto mute after 20 minutes with no signal WxHxD (mm) / Weight: 300 x 300 x 410 / 13 kg Frequency response: 35 – 150 Hz Connections: High level stereo speaker input (4mm banana plug/binding post), stereo line level input Drivers: 250mm (10″) long-throw paper cone

Prusa i3 with wooden frame specs: print volume 180 x 180 x 180 heatbed 0.4 extruder head uses 1.75mm filament 1000w power supply. includes: extra extruder head 0.4mm ±2kg of 1.75 ABS filament (colours are red, white black, blue, yellow and green) extra resettible fuses for heat bed