2pcs noise

2Pcs 50x505cm Square Insulation Reduce Noise Sponge Foam Cotton Package weight: 0.09 kg Description: 2Pcs 50x50×5cm Square Insulation Reduce Noise Sponge Foam Cotton Specification: Material: Polyurethane foam (Color: Charcoal Gray Size: 50cm*50cm/ 20" x20" (L*W) Thickness: 5cm/ 2" Features: -Suitable for sound recording studio, listening room, home theater, KTV, and all kinds of public places. -The sponge is the ideal sound insulation, sound-absorbing, heat insulation material -Sound-absorbing sponge is on the basis of sponge for further processing, acoustic inside the sponge and reflection of the increase in the number so as to achieve the noise, sound-absorbing effect. Package Included: 2×Insulation Reduce Noise Sponge More Details: Click here for more deals 2Pcs 50x505cm Square Insulation Reduce Noise Sponge Foam Cotton 2Pcs 50x505cm Square Insulation Reduce Noise Sponge Foam Cotton

2Pcs TEC1-12705 Heatsink Thermoelectric Cooler Peltier Plate Module Feature: No moving parts, no noise, and solid-state Compact structure, small in size, light in weight Environmental friendly RoHS compliant Precise temperature control Exceptionally reliable in quality, high performance Specification: TE Module Parameter Type: TEC1-12705 Couples: 127 Imax: 5A Umax: 15.4V Qcmax ¿T=0(W): 42.5w Tmax: 65°C Size: 40 x 40 x 3.8mm Application: Food and beverage service refrigerator Portable cooler box for cars Liquid cooling Temperature stabilizer CPU cooler and scientific instrument Photonic and medical systems How to install: Chip cooling side mounted heat sink, side mounted cooling system installation guide table. Face flatness less hand stab at 0.03mm to remove the dirt. Chip cooling with heat sink and conduction-cooled block good contact, the contact surface to be coated with a thin layer of thermal grease. Fixed refrigeration refrigeration slice both to make films even by force, but also pay attention to cut. Do not over, to prevent fracturing tiles Package included: 2 x TEC1-12705 cooler plate module

Description: 2Pcs 30×30×5cm Bule Square Insulation Reduce Noise Sponge Foam Cotton   Specification: Material:nvironmentally polyurethane foam Color:blue Size:30x30cm Thickness:5cm Features: -Suitable for sound recording studio, listening room, home theater, KTV, and all kinds of public places. -The sponge is the ideal sound insulation, sound-absorbing, heat insulation material -Sound-absorbing sponge is on the basis of sponge for further processing, acoustic inside the sponge and reflection of the increase in the number so as to achieve the noise, sound-absorbing effect. Package Included: 2×Insulation Reduce Noise Sponge More Details:

Description: 2Pcs 50x50×5cm Square Insulation Reduce Noise Sponge Foam Cotton Specification: Material: Polyurethane foam (Color: Charcoal Gray Size: 50cm*50cm/ 20" x20"   (L*W) Thickness: 5cm/ 2" Features: -Suitable for sound recording studio, listening room, home theater, KTV, and all kinds of public places. -The sponge is the ideal sound insulation, sound-absorbing, heat insulation material -Sound-absorbing sponge is on the basis of sponge for further processing, acoustic inside the sponge  and reflection of the increase in the number so as to achieve the noise, sound-absorbing effect. Package Included: 2×Insulation Reduce Noise Sponge More Details:

Description: Material: Sponge Size: 300x300x30mm Quantity: 2Pcs Color: Black + Yellow/Black+Red/Black+Blue/Black+Gray/Black+Purple Applied to: Studio, Piano room, Drum room, Anchor's room, Home Theater, KTV, Meeting rooms, Instrument rooms, etc. Features: -Suitable for sound recording studio, listening room, home theater, KTV, and all kinds of public places. -The sponge is the ideal sound insulation, sound-absorbing, heat insulation material -Sound-absorbing sponge is on the basis of sponge for further processing, acoustic inside the sponge and reflection of the increase in the number so as to achieve the noise, sound-absorbing effect. Package Included: 2× Insulation Reduce Noise Sponge More Details:

OPTIONS: Black + Yellow: 1 Available. Black+Red: Sold Out Black+Blue: Sold Out Black+Gray: Sold Out Black+Purple: 8 Available. Description: Material: Sponge Size:250x250x30mm Quantity: 2Pcs Color: Black + Yellow/Black+Red/Black+Blue/Black+Gray/Black+Purple Applied to: Studio, Piano room, Drum room, Anchor's room, Home Theater, KTV, Meeting rooms, Instrument rooms, etc. Features: -Suitable for sound recording studio, listening room, home theater, KTV, and all kinds of public places. -The sponge is the ideal sound insulation, sound-absorbing, heat insulation material -Sound-absorbing sponge is on the basis of sponge for further processing, acoustic inside the sponge and reflection of the increase in the number so as to achieve the noise, sound-absorbing effect. Package Included: 2× Insulation Reduce Noise Sponge More Details:

OPTIONS: Black + Yellow: 1 Available. Black+Red: Sold Out Black+Blue: Sold Out Black+Gray: Sold Out Black+Purple: 3 Available. Description: Material: Sponge Size:250x250x30mm Quantity: 2Pcs Color: Black + Yellow/Black+Red/Black+Blue/Black+Gray/Black+Purple Applied to: Studio, Piano room, Drum room, Anchor's room, Home Theater, KTV, Meeting rooms, Instrument rooms, etc. Features: -Suitable for sound recording studio, listening room, home theater, KTV, and all kinds of public places. -The sponge is the ideal sound insulation, sound-absorbing, heat insulation material -Sound-absorbing sponge is on the basis of sponge for further processing, acoustic inside the sponge and reflection of the increase in the number so as to achieve the noise, sound-absorbing effect. Package Included: 2× Insulation Reduce Noise Sponge More Details:

SELECTED OPTION: COLOR: BLACKBLUE CLICK HERE for more options in this item. Description: Material: Sponge Size: 300x300x30mm Quantity: 2Pcs Color: Black + Yellow/Black+Red/Black+Blue/Black+Gray/Black+Purple Applied to: Studio, Piano room, Drum room, Anchor's room, Home Theater, KTV, Meeting rooms, Instrument rooms, etc. Features: -Suitable for sound recording studio, listening room, home theater, KTV, and all kinds of public places. -The sponge is the ideal sound insulation, sound-absorbing, heat insulation material -Sound-absorbing sponge is on the basis of sponge for further processing, acoustic inside the sponge and reflection of the increase in the number so as to achieve the noise, sound-absorbing effect. Package Included: 2× Insulation Reduce Noise Sponge More Details:

Description: 2pcs 115mm Rust Paint Remover Abrasive Poly Disc Wheel For 4.5 Inch Angle Grinder Specifications: Material: Polyurethane coated, nylon cord Color: Black Diameter:115mm/4.53" Bore size:22.2mm/0.87" Max. rpm:11500 Quantity: 2pcs Features: - Brand new and high quality. - Made from polyurethane coated nylon cord, impregnated with silicon carbide. - Uniform grinding effect, less dust and low noise. - For use with most makes of 115mm (4 1/2") angle grinders. - For removal of rust, paint and flaking materials. - Used for surface preparation, conditioning and finishing. Packaged Included: 2pcs x Abrasive wheel Note: 1.Please allow 1-3mm error due to manual measurement. please make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. More Details:

Specifications: Product Name: RGB PC Fans Color: Multi-Colored Diameter: 12cm Speed: 1300 RPM±10% Current: 0.28 A Voltage: DC12 V Rated Power: 2.1-3.6W(the power will be changed accoding to your selective RGB fans modes colors) Estimated Life Span: 40000Hrs Wind: 1.21 mm - H20 Noise: Wind Flow: 53.02CFM Material: ABS (Acrylonitrile Butadiene Styrene Copolymers) Power Connection: 3PIN It can connect up to 10 fans and 2 light bars (2 light bars are not included in our products), and fans must be connected in sequence in order to make all fan light up. Features: 1. With 366 kinds of light mode, 16 million colors. 2. Lower noise 3. Copper motor 4. Silicone mats Package Includes: 2 x RGB PC Fans 1 x Remote Control 1 x Control Panel (Connected with the Accessory Line) 1 x AccessorySpecification:

Description: 2pcs 125mm 5 Inch 40 Grit Grinding Disc Wheel for Angle Grinder Specification: Material: Stainless steel, Aluminum Color: Purple Grit: 40 Grit(Medium Grit) Diameter: 125mm/5" Bore size: 22.23mm,7/8" Max. rpm: 12200, 80m/s Quantity: 2pcs Features: - Uniform grinding effect, less dust and low noise. - For use with most makes of 125mm (5") angle grinders. - Used for surface preparation, conditioning and finishing. - Very fast removal of paint or rust WITHOUT damaging the original surface. - Excellent for removal of paint or rust off car panels - also great for use on wooden or fiberglass surfaces. Ideal for cars, trucks, motorcycles or boats. Package Included: 2 x Grinder Wheel More Details:

Description: 2PCS Black Passive Radiator Loudspeaker Auxiliary Bass Speaker  Specification: Color: Black Size:(Length x Width x Height) 5.7cm x 5.7cm 2.5cm / 2.2" x 2.2" x 1" Screw Hole Diameter: 0.4cm/0.2" Distance of Screw Holes: 4.8cm/1.9" Speaker Hole: 4.8cm/1.9" Features: 1.The passive bass radiator is to replace inverted tube. 2.No noise, higher speed of the voice. Package Included: 2× Auxiliary Bass Speaker  More Details:

*LOCAL STOCK* 2PCS Baofeng BF-A5 Walkie Talkie UHF Scan VOX Bright Flashlight Two Way Radio Note: This auction for One Pair Walkie Talkie EU Power adapter Feature: Frequency range: 400-470MHz Memory channel: 16 Output power: 5 W Battery capacity: 1800 mAh Rated voltage: 7.4 V Antenna impedance: 50 ohm CTCSS/DCS function: Yes FM radio: Yes Time-out timer(TOT): Yes Scan: Yes Voice prompt(English): Yes Squelch level adjustment: Yes VOX (voice operated transmission): Yes Emergency alarm: Yes Busy channel lock-out: Yes Bright flashlight function: Yes Noise reduction function: Yes PC software programmable: Yes Dual band or Single band: Single band Dual frequency or Single frequency: Single frequency Specification: Frequency stability: ±2.5ppm Modulation Mode(W/N Band): F3E Maximum Frequency Deviation (W/N Band): Spurious Power: ≤7.5 µW Adjacent channel power: 65dB (W),55dB (N) Audio Distortion: 5% SNR: -52dB(W), -48dB(N) Transmitting Current: ≤1500mA Audio Power: 1 W Inter modulation Interference Resistance: ≥65dB (W), ≥55dB (N) Adjacent channel Sensitivity (W/N Band): ≥65dB (W), ≥55dB (N) Receiving Current: ≤ 400m A Package include: 2 x Portable radio 2 x Antenna 2 x Li-ion battery pack 2 x Charger (EU Power adapter)  2 x Belt clip 2 x Sling 2 x Use’s manual   Click here to view all our stunning items

Description: A4988 is a complete microstepping motor driver with built-in translator for easy operation. This product is available in full, half, 1/4, 1/8 and 1/16 step modes operate bipolar stepper motors, output drive capacity of up to 35 V and 2 A. A4988 includes a fixed off-time current regulator, the regulator in slow or mixed decay modes. A4988 converter is the key to the easy implementation. As long as the "step" input inputting one pulse drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. A4988 interface is very suitable for complex microprocessor is unavailable or is overburdened. In the micro-step operation, A4988 chopping control inside automatically selects the current decay mode (Slow or Mixed). In mixed decay mode, the device is initially set to a fixed downtime in some fast decay, then the rest of the slow decay downtime. Mixed decay current control scheme results in reduced audible motor noise, increased step accuracy, and reduced power consumption. Internal synchronous rectification control circuitry is provided to improve the pulse-width modulation (PWM) operation power consumption. Internal circuit protection includes: thermal shutdown with hysteresis, undervoltage lockout (UVLO), and crossover-current protection. Special power sequencing. A4988 surface mount QFN package (ES), a size of 5 mm 5 mm, nominal overall package height of 0.90 mm, with an exposed pad for enhanced thermal dissipation. This package is Pb (suffix-T), with 100% matte tin leadframe plating. Features: 1. Simple step and direction control interface 2. Short-to-ground and shorted-load protection 3. Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step 4. Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay) 5. Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection 6. Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above       your stepper motors rated voltage to achieve higher step rates Package included: 2x Step motor driver module 2x Heatsink

Wireless Karaoke Microphones with Receiver Box Product Features: 2pcs BK-162 wireless karaoke microphones with receiver box Super silent function, low T.H.D Wide frequency response, high S/N ratio Resist disturbing strongly, limits noise output Wide using range, manipulate facility Changed output controlled slowly Complete working state and power level indicating Environment protection save on electricity MicrophoneS each powered by 1 x 9V battery (battery Included) Microphone Size: 225 x 40 x 32 mm / x 1.56 x inch(each) Microphone Weight: 189 g / oz(each) Colour: as shown in the picture Product Specifications: Carrier Frequency Range: 220 to 270 MHZ, VHF high band Frequency Stability: % Sensitivity: 10 / μ V S/N quartile 80 dB Frequency Interference Ratio: > 80 dB SNR: > 90 dB Mirror Interference Ratio: > 80 dB Switching Time for Automatic Signals Selecting: 200 ms Audio Output: adjustable mV Frequency Response: 50 Hz-16 KHz (plus or minus 3 dB) Temperature Range: -℃ Package Contents: 2 x Microphones 2 x 9V Batteries 1 x Receiver Box NOTE: Right plug of adapter would be sent according to your shipping country 1 x Cable 1 x User Manual      

Description: 3pcs 1/2" Shank Two flute Raised Panel Cabinet Door Router Bit Set With Wood Case    Specifications: Material: medium carbon steel + alloy Color: Yellow Size: Suitable For: MDF, solid wood, particle board, plywood, wooden door frames, wooden window frames, cabinets and boxes,etc.   Features: 1.Make professional and beautiful raised panel cabinet doors with this 3 piece router bit set. Use with up to 1" stock. Rail & stile bits create a perfectly matched rail & stile door frame,trepanning more smooth,less noise. 2.Sharp edge,high hardness,accurate positioning,high precision,smooth cutting,impact resistance,high toughness. 3.Selection of high quality alloy blade,make blade more sharp and durable. 4.Hook & shear angles high hook & shear angles allow cutters to slice smoothly into stock producing clean, splinter free. 5.Coating Baked on heat resistant coating prevents build-up of sawdust, resin, and pitch. 6.Fully enclosed ball bearing guides allow for precise cuts without the use of a fence.   Package Included:  3pcs x Template Router Bit 1pc x Spanner 2pcs x Shims   Note:Manual measurement, please allow error of 1 to 2 mm.   More Details:

SELECTED OPTION: COLOR: RED CLICK HERE for more options in this item. Description: Acoustic Wedge Studio Soundproof Sponge can absorb the sound waves after they reflect inside the foam. Specifications: Material: Polyurethane foam Total Size: Approx. 120 x 30 x 7.5 cm (Length x Width x Thickness) Color: Black / Red Density: 50# Product Care: Vacuuming of dust Feature: - Sound absorption foam panel can absorb the sound waves after they reflect inside the foam. - It can absorb the audio frequency above 500HZ to lower the noise caused by reflection and echo. - This product is environment protective made, and no dust in high density. Applications: - Entertainment places: dancing room, recording room, audio-visual room, vocal booths, piano room, theater,   gym studio, factory workshop, soundproof doors and room building and so on - Home soundproof: Living room, conference room, ceiling and so on Package Included: 1 x Acoustic Foam Set (4 Pcs = 2Pcs striped square Foam+2 Pcs flat spuare foam, as the picture shows.) Note: - Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. - Please allow a little differs due to manual measurement. - Black color foam is not easily oxidized. The other colors, will get oxidized after using for months. This is the normal feature of foam.