1. Support all audio equipment with audio input interface, realize wireless audio receiver transmission
2. Support automatic search for Bluetooth devices to realize connect, transmit wireless audio transmission
3. Built-AEC echo cancellation and noise cancellation circuit ANC, gorgeous stereo sound more pure
4. Built-in enhanced signal transmission circuit, connected faster and more stable
5. Double lossless audio formats compatible
6. Support AUX OUT, Earphone
7. Automatic memory connected function, the operation is easier, more convenient
8. Built-in battery, Long standby
9. Bluetooth 2.1, Consume low power
10. Live voice prompts, simple and clear operating
11. Smart compatible Android, IOS phone system and PAD, and all Bluetooth audio devices
12. Support connect a mobile phone
13. Easy connection, No Need APP and Drivers

About The Product
1. The LINEPAUDIO binary passive switch comparator uses an audio crossover circuit architecture which is a combination center of a pair of speakers and two channel audio signal switch controllers.
2. It provides you with the convenience and flexibility to listen to different loudspeakers and power amplifiers in power amplifier and speaker systems. Designed to provide your speakers with a lossless audio combination of audio amplifiers or home theater systems, the product unit features high-quality, precision manufactured loudspeaker connectors.
3. The product can accept up to 12 specifications connecting head wire combination control, in order to harvest maximum reliability and durability. Each channel can handle 200W RMS.
4. The product can support any conventional power amplifier or stereo receiver can drive multiple sets of speakers. There is no need to increase the external impedance matching device.
5. Switching the output signal does not affect the sound quality and volume loss of any other sound, and can be easily combined with any device.

Features
1. Listen to power amplifiers A or B through a pair of speakers.
2. A speaker 1 or 2 is heard from one of the two power amplifiers.
3. Compatible with all types of power amplifiers and speakers.
4. The input / output receives the heavy-duty speaker wire or speaker pin wire through the terminal port.
5. Press the speaker selection switch to the corresponding speaker 1 or speaker 2 position.
6. Press the amplifier selection switch to the corresponding amplifier A or amplifier 2 position.
7. Turn on your stereo device, the product does not need external power supply.
8. Fine steel housing, compact size suitable for any system.
9. Channel power: Up to 200W per channel.
10. The frequency response: 10Hz to 50kHz.

About The Product
1. The LINEPAUDIO phone preamplifier adds phonograph functionality to any amplifier or receiver with standby auxiliary level input.
2. Prephonograph signal amplifier with AUX input and volume control, and AUX is with no signal amplification function.
3. The Phono preamplifier adds a phonograph function to any amplifier or receiver having standby AUX / CD / DVD audio line level input.
4. It can also be used to drive the disc directly into a mixer or a computer sound card. With its precise RIAA balance and 80 dB S / N ratio, the product can also be used to input the turntable directly into the sound system of the mixer or a computer. In order to switch auxiliary input to replace stereo or computer use, eliminating the need of connect and disconnect of the source signal as well as the sharing connection of the product. The sound quality of the preamplifier is easy to match or exceed the sound quality of the phonograph preamplifier built into a high-quality stereo component.
5. Product configuration switch function selects AUX input instead of stereo or AUX input port occupied on the computer. There is no need to connect or disconnect a shared input signal source of the product.
6. The output level control is very convenient to use the sound card and allows for the elimination of the largest signal difference between the switched signal sources.

Features
1. High quality RIAA phonograph preamplifier, for use with dynamic magnetic type jukebox.
2. Accurate and stable integrated circuit design.
3. Gold-plated head input and output connection RCA port, reliable performance.
4. Stylish, sturdy metal case to increase resistance of electrical noise.
5. The output level control allows the volume to be adjusted to provide signals from other sources.
6. Distortion ratio: 0.06% (max).
7. The frequency response is: + / -0.5dB, 20Hz - 20kHz.
8. Phonograph input impedance: Phono: 47K ohm - 200pF nominal.
9. Line input impedance: AUXL: 10K ohm.
10. Output impedance: 200 ohms.
11. Channel separation: 50dB.
12. Voice: 40dB (Phono) arbitrary signal source.
13. Phono sensitivity: 3.3MV.
14. Output: 300MV.
15. SNR: 85 dB.
16. Power supply: DC 12V 1A.

About The Product
1. LINEPAUDIO 1 in and out XLR Distributor horizontal parallel Distributor when you need to divide line level signal into 6 routes, please use this product to solve your device separation problem.
2. The product inputs a XLR signal source, connects to 6 XLR interfaces, adds additional amplifiers to the equipment system, connects multiple active stereo speakers, and separates intercom lines.
3. Input (XLR) is used to connect signal line input. The output XLR6) Jack is connected in parallel to the input line level signal, and the output can usually be separated from six interfaces without significant signal quality distortion. The actual number of partitions that can be completed depends on the level of the source signal and the impedance of the source.

Features
1. Please use this convenient box when you need to divide the line level signal into six times.
2. 1 XLR input socket in parallel to 6 XLR outputs.
3. Additional amplifiers are added to the system to connect a plurality of active speakers.
4. Split up intercom lines, etc.

About The Product
1. LINEPAUDIO B877 personal listener. Designed for players who want to listen to their voices via headphones or earphones, such as their vocal and musical instruments, mainly for drummers, who need to mix click tracks with listener signals. Church choir singing and others needs to listen to the sound of their music. All 3 stereo channels personal monitor desk headphone mixer,
2. Three input channels are outputted by 1/4 and 1/8 (6.5 and 3.5 mm) of headphone holes through various level controllers, and the microphone channel and device output are connected to ground switches. Easy to eliminate the current ground buzzing noise. This product is an ideal choice for live band and church musicians as well as studio musicians and singers. It has the ability to customize the main music and the voice and instrument input of musicians. Make the product become an effective and multifunctional listening device.
3. Line input: 1/4 TRS stereo Jack for connecting line level signal sources, such as mixer listening / auxiliary output, cassette player output, CD player output, and etc.
4. Ground connecting: Plug jumper to disconnect the chassis grounding input of microphone pin 1 and the microphone passes through.
5. The microphone: XLR Jack is in parallel with the microphone input Jack (hardwired) for delivery to the mixer or other microphone-level input device.
6. Microphone input: XLR balanced Jack for connecting capacitors or moving-coil microphones.
7. Device input: 1/4 TRS stereo Jack for connecting device or line level signals, such as guitar processors, keyboards, musical instruments, keyboards, or previous outputs of musical instruments.
8. Mono / stereo jumper: Select whether the input Jack is mono or stereo.
9. Left / right output: Transformer balanced XLR output from device input.
10. hGrounding route: A plug jumper used to disconnect the chassis from the output Jack of the 1/4 RS device.
11. Mono / stereo jumper (located below the line input): select whether the line input Jack is mono or stereo.
12. Note: The interface of the XLR Jack under MONO mode can be used for "Phantom Power" which is required to connect the mixer.
13. Headset output: 1/4 stereo Jack and 1/8 stereo Jack for connecting stereo headphones or headphones.
14. Line level: Adjust the level signal from the line input to the headphone mixing.
15. Microphone level: Adjust the level signal from microphone input to headphone mixing.
16. Inst. level: Adjust the level signal from inst. input to headphone mixing.
17. The line input is connected to a 1/4 "stereo or mono plug." If the plug is 6.35mm stereo, select the mono / stereo jumper set by stereo. The plug is a single-ended mono channel. Select mono / stereo jumper settings.
18. Microphone input is connected to a dynamic microphone or capacitive microphone via a standard XLR cable. If you are using a capacitive microphone, you need to charge it with power from the mixer connected to the microphone Jack. This Jack transmits the phantom power from the mixer to the microphone. Connect the microphone through the Jack to the mixer as needed.
19. Instrument input is connected to the guitar preamplifier output, keyboard or any stereo or monophonic instrument signal. Select stereo or mono.

Features
1. Max input level: -20 dB XLR, +40dB line, +15dB instrument.
2. Input impedance: 50K ohms
3. Output frequency response: 10-30kHz +/-3dB
4. Output impedance HDPHN: 10ohms
5. Output impedance: 2 ea; 100ohms balanced
6. Gain: 20 dB 1/4 inch, 50dB XLR
7. HDPHN frequency response: 20Hz-20kHz
8. S/N ratio: 90dB
9. Power: DC 9-16V
10. 1/4 TRS stereo / mono listening input.
11. The XLR microphone enters w/ pass-through.
12. 1/4 TRS stereo instrument input, 6.35mm / 3.5mm stereo / mono output.