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Product function introduction 1. The B981 is a powerful 8-channel high-power pre-amplifier which has dual-sound input with a selector switch. 2. The product provides an independent 3.5mm stereo earphone jack which can drive a variety of high-impedance professional monitor earphones well. 3. Each channel can drive 16ohm -600 ohm and provide 8 stereo channels for output. 4. There are four independent volume knob adjustments to control the 8-channel for simultaneous level signal output, presenting the rich sound quality, well-balanced bass, clear high frequency, and no other signal popping phenomenon, and ensuring lossless and undistributed sound. 5. It can provide +20dB high gain through any line level signal source, allowing running through longer cable lines or "buffering" to solve low volume problems. 6. You can use the product to connect line level signal source and power amplifier as a volume controller. 7. The RCA socket can match almost all other product interfaces. The product is powered by an AC AC9V transformer. Product parameters 1. Input impedance: 100K Ohm 2. Input level: +14 dBV 3. Output impedance: 47 Ohm per output channel 4. Frequency response: 20 Hz - 20K Hz 5. Signal to noise ratio: Above 107dB 6. Total harmonic distortion: Less than 0.08% 7. Inter-modulation distortion: Less than 0.01% 8. Signal input: Two sets of stereo RCA socket 9. Signal output: Six sets of stereo RCA connectors and two sets of 3.5mm stereo earphone jack 10. Product power supply: AC 9V-12V 11. 4 independent channel stereo level volume output controlling knobs 12. Product net weight: 0.68kg 13. Packaged product weight: 0.82g 15. Product dimensions: Length 145mm x width 112mm x height 42mm 16. Packing dimensions: Length 260mm x width 185mm x height 65mm Kit list 1. B981 Professional 8-channel preamp signal-amplifier speaker distributor x 1 2. AC9V Power adapter (US standard) line length 100CM x 1Specification: Package Weight One Package Weight 0.89kgs / 1.97lb One Package Size 26cm * 18.5cm * 6.5cm / 10.24inch * 7.28inch * 2.56inch Qty per Carton 18 Carton Weight 15.00kgs / 33.07lb Carton Size 68cm * 48cm * 17cm / 26.77inch * 18.9inch * 6.69inch Loading Container 20GP: 480 cartons * 18 pcs = 8640 pcs40HQ: 1115 cartons * 18 pcs = 20070 pcs

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1. Small size, easy to carry 2. Connector: 3.5mm female 3 Pin 3. Plug: gold-plated 4. Wiring connect: non soldering 5. Product material: PC+metal 6. Product size: 42x20x12mmSpecification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 6cm * 3cm * 1.5cm / 2.36inch * 1.18inch * 0.59inch Qty per Carton 1000 Carton Weight 13.50kgs / 29.76lb Carton Size 35cm * 30cm * 26cm / 13.78inch * 11.81inch * 10.24inch Loading Container 20GP: 976 cartons * 1000 pcs = 976000 pcs40HQ: 2267 cartons * 1000 pcs = 2267000 pcs

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1. This is a home Bluetooth audio receiver with dual interface audio output, supports TF card/U disk playback, hands-free calling, and NFC connection. Industrial-grade power isolation module is used to solve noise interference2. Connect your speakers (3.5mm and RCA) via the (3.5mm and RCA) audio interface, instantly turning your ordinary speakers into Bluetooth speakers. The product is compact and stylish in appearance and convenient to operate. Pairing with the product through Bluetooth devices (mobile phones, tablets, etc.) allows you to enjoy the music feast brought by Bluetooth transmission at any time3. Support equipment: support two mobile phones to connect4. Bluetooth version: 5.05. Output interface: 3.5mm stereo, RCA left and right channels6. Function introduction: TF/U disk playback, hands-free call, NFC connection7. Bluetooth protocol: AVRCP, A2DP8. Frequency range: 2400-2483.5MHz9. Frequency response: 20Hz-20KHz10 Output power: 28mW RL=16 ohm11. Signal to noise ratio: greater than or equal to 90dB12. Total harmonic distortion: less than or equal to 0.00113. Support SBC, AAC14. Forward transmission distance: 10m15. Support Micro USB interface: 5V power supplySpecification: Package Weight One Package Weight 0.15kgs / 0.34lb One Package Size 14cm * 10cm * 3.5cm / 5.51inch * 3.94inch * 1.38inch Qty per Carton 200 Carton Weight 30.00kgs / 66.14lb Carton Size 82cm * 58cm * 20cm / 32.28inch * 22.83inch * 7.87inch Loading Container 20GP: 280 cartons * 200 pcs = 56000 pcs40HQ: 650 cartons * 200 pcs = 130000 pcs

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1. Support music + charging + remote control + call four functions2. Support up to 48KHz, 24-bit audio output, lossless sound quality3. Strong compatibility4. Plug and Play5. Unique 90-degree design allows you to play games or watch movies without any impact6. Simple, lightweight, durable and portableSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 15cm * 10cm * 1.5cm / 5.91inch * 3.94inch * 0.59inch Qty per Carton 360 Carton Weight 3.24kgs / 7.14lb Carton Size 47cm * 47cm * 42cm / 18.5inch * 18.5inch * 16.54inch Loading Container 20GP: 287 cartons * 360 pcs = 103320 pcs40HQ: 667 cartons * 360 pcs = 240120 pcs

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1. Stream music on tape to Bluetooth Headphone or Speaker directly.2. Automatic search and pair Bluetooth receivers.3. USB power supply or 2 x AA batteries(not included).4. Stereo audio.5. With automatic rewind function.6. Compact and portable design.Specification: Package Weight One Package Weight 0.20kgs / 0.44lb One Package Size 12.5cm * 9.5cm * 4cm / 4.92inch * 3.74inch * 1.57inch Qty per Carton 150 Carton Weight 30.00kgs / 66.14lb Carton Size 66cm * 50cm * 21cm / 25.98inch * 19.69inch * 8.27inch Loading Container 20GP: 384 cartons * 150 pcs = 57600 pcs40HQ: 893 cartons * 150 pcs = 133950 pcs

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Features1. This music receiver (hands-free) is designed to receive music from mobile phones or transmitters that feature bluetooth wireless technology. 2. This music receiver can be used with almost any audio receiver with an audio input jack, including automobiles. 3. Listen to music from your smart phone or MP3 player on your existing home or car audio system. 4. To enjoy car music, call solutions, the use of smart phones to make calls and listen to music through the car stereo. 5. This product is embedded for echo cancellation microphone. 6. Using only one button, you can easily switch between music and phone.Specification: General Material Plastic, Metal Types Music Receiver Connector Micro USB, 3.5mm Earphone Port Size 5.5*2.5*1cm Weight 13g Parameters Bluetooth Version V3.0 Protocol A2DP Transmission Distance 10m Package Include Package Contents User Manual x 1 USB Cable x 1 Music Receiver x 1 3.5mm Audio Adapter x 1 Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 13.5cm * 11.5cm * 2.5cm / 5.31inch * 4.53inch * 0.98inch Qty per Carton 100 Carton Weight 8.00kgs / 17.64lb Carton Size 27cm * 58cm * 29cm / 10.63inch * 22.83inch * 11.42inch Loading Container 20GP: 587 cartons * 100 pcs = 58700 pcs40HQ: 1363 cartons * 100 pcs = 136300 pcs

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1. Frequency response range: 20-40,000 Hz2. Impedance: 23 ohms3. Sensitivity: 94 dB4. Cable: Oxygen-free copper (OFC) dual-core parallel cable5. Connector type: 0.78mm (2-pin)6. Plug type: 3.5mm / Type-C7. Cable length: Approx. 120 cmFeatures:1. Utilizes an ultra-linear internal-magnet dynamic driver; features a concealed internal soldering structure and internal magnet layout that significantly increases magnet height, resulting in superior low-frequency performance.2. Improved gold-plated 2-pin detachable connector design allows for easy cable replacement.3. Ergonomic shape ensures a comfortable fit.4. Oxygen-free copper dual-core parallel cable minimizes signal transmission loss and sound attenuation, enhancing audio signal resolution and conductivity for high-fidelity sound transmission.5. Version with microphone features simple one-button in-line control; the built-in microphone captures sound with precision and clarity, making calls feel like face-to-face conversations.Specification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 12cm * 10cm * 4cm / 4.72inch * 3.94inch * 1.57inch Qty per Carton 130 Carton Weight 14.00kgs / 30.86lb Carton Size 54cm * 38cm * 30cm / 21.26inch * 14.96inch * 11.81inch Loading Container 20GP: 433 cartons * 130 pcs = 56290 pcs40HQ: 1005 cartons * 130 pcs = 130650 pcs

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1. USB power audio jack board replacement for MacBook Air 13 A1466 (2012) 820-3214-A 821-1477-A 2. Replace your broken, damaged or non-working item with a new one 3. Each item has been checked and in good condition before shipping 4. Completely fit and work 5. Professional installation is highly recommended. We will not be responsible for any damages to your cellphone/mobile phone that you may cause during the changing of replacement partsSpecification: General Compatible with Apple: MacBook Air 13.3 inch A1466 (2012 - 2017) Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 15cm * 12cm * 1cm / 5.91inch * 4.72inch * 0.39inch Qty per Carton 600 Carton Weight 13.00kgs / 28.66lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 600 pcs = 228600 pcs40HQ: 885 cartons * 600 pcs = 531000 pcs

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Headphone type: Headphones Wearing method: head-mounted Headphone output source: PC Plug diameter: 3.5mm Plug Type: Straight Insert Whether wireless headphones: wired headphones With or without a microphone: Yes Earplugs / earmuffs material:  Headphone wire material: braided wire Uses: game audio and video headphones, gaming headsets, computer headsets, voice headsets, ordinary headphones Ordinary style luminous headphones: 2 3.5mm plugs + 1 USB jack for desktop computers. After purchasing the 2-in-1 patch cord, it can be used for laptops, mobile phones, etc. The volume adjustment button is on the body. A: PS4 luminous headphones 1 3.5mm plug + 1 USB socket, suitable for PS4 host, Switch, Laptop, etc., can be illuminated. After purchasing a second audio cable, you can use a desktop computer. Remote control, adjustable microphone, adjustable volume B: 7.1 channel USB illuminated headphones 1 USB port for desktop computers, laptops, etc., can be illuminated. The remote control can be used to turn off the microphone, turn off the light, and adjust the volume.

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Product Specification：1.Support A2DP,AVRCP, Handsfree profile,FM radio2.With FM function, can search radio station broadcast automatically3.International advanced Wireless chip and circuit design techniques,support all wireless devices.4.With Hi-Fi speaker, to make sure the clear and bright sound.5. Support Micro SD card and USB card, play MP3 format audio.6.The wireless working distanceis 10 meters.7.With AUX line in, can directly connect the outside devices,for example, tablet PC/TV/cellphones.8.It will close automatically after 30 mins if bluetooth mode no connection Product Feature:Bluetooth Version:V4.2Working Range:in 10metresDimension:75*75mm*161.6mmGross Weight:512gSpeaker Specifications: ￠52MM*2Loudspeaker Output:4Ω/5W*2Frequency response: 120HZ-20KHZSignal-to-Noise:≥90dBDistortion: ≤0.5%Battery Voltage/Capacity:1200mAhBattery Charging Voltage:5V /500mAHPlay time values for speakers :3-4hoursPackaging List:1* Bluetooth Speaker 1* USB Charging Cable 1* AUX Cable 1* User ManualSpecification: General Certificate CE, ROHS Package Weight One Package Weight 0.52kgs / 1.16lb One Package Size 17.5cm * 8.5cm * 9.6cm / 6.89inch * 3.35inch * 3.78inch Qty per Carton 40 Carton Weight 24.00kgs / 52.91lb Carton Size 44cm * 35cm * 39cm / 17.32inch * 13.78inch * 15.35inch Loading Container 20GP: 444 cartons * 40 pcs = 17760 pcs40HQ: 1030 cartons * 40 pcs = 41200 pcs

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1. USB2.0 interface, without external power supply2. Capture video and audio via USB 2.0 interface3. You can capture audio without a sound card4. Support brightness, contrast, hue and saturation control5. Support all formats (burn video to DVD): burn in DVD+/-R/RW, DVD+/-VR and DVD video6. Small and portable, easy to carryspecification:1. Interface: USB 2.02. Video standard: NTSC/PAL3. Video capture format: MPEG 4/2/1 format4. Video input: one RCA composite, one S-Video5. Audio input: stereo audio (RCA)6. Still image capture: JPG or BMP format7. Support high-quality video resolution:NTSC video shooting: 720 x 480 at 30 frames per secondPAL video capture: 720 x 576, 25 frames per second8. Size: 9.0x2.5x1.5cm/3.54x0.98x0.59in9. Weight: 41g/1.640z10. System requirements:Support system: Support Vista 64/win7/win8/win10/Mac OS11. Packing list:1xEaster CAP USB 2.0 video and audio capture adapter1xCD-ROM drive (including driver and professional video editing software)1xUSB female to male cable1x user manualSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 10cm * 10cm * 2cm / 3.94inch * 3.94inch * 0.79inch Qty per Carton 100 Carton Weight 6.00kgs / 13.23lb Carton Size 30cm * 30cm * 20cm / 11.81inch * 11.81inch * 7.87inch Loading Container 20GP: 1481 cartons * 100 pcs = 148100 pcs40HQ: 3439 cartons * 100 pcs = 343900 pcs

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1) Male 3.5mm stereo Jack to two male RCA plugs. 2) Gold plated connections for better sound quality and lessSpecification: Package Weight One Package Weight 0.10kgs / 0.21lb One Package Size 15cm * 1.5cm * 1.5cm / 5.91inch * 0.59inch * 0.59inch Qty per Carton 200 Carton Weight 15.80kgs / 34.83lb Carton Size 48cm * 32cm * 32cm / 18.9inch * 12.6inch * 12.6inch Loading Container 20GP: 542 cartons * 200 pcs = 108400 pcs40HQ: 1259 cartons * 200 pcs = 251800 pcs

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