• [High Performance] Sound amplification function, gain 20dB (10x), drive a variety of sound amplifiers and high resistance, low headphone without pressure. Dual op amp NE5532, high frequency electrolytic capacitors, noise reduction circuit design, no background noise, effective gain sound, improve sound quality.
• [Long Distance] Sound preamplifier with HiFi Bluetooth chip, external antenna to achieve long distance Bluetooth reception, measured up to 50m/164ft or more, with volume adjustment knob, you can freely adjust the volume.
• [Sound Distribution And Mixing] Sound distribution function, three sets of interfaces can be output at the same time, two sets of interfaces, a 3.5mm headphone interface; sound mixing function, 3.5mm interface input and Bluetooth sound can work, mix and output at the same time.
• [Power Supply Specifications] DC5V12V power supply, 5v220ma, 12v85ma working current, stereo sound preamplifier can be powered by 12V power adapter, mobile power or cell phone charging head. Please use premium power adapter or charging head to avoid AC noise (without plug).
• [Compatible Devices] Input: DVD, CD, set top box, MP3, TV, cell phone, computer, tablet, microphone, phono turntable, sound card, guitar, bass, electronic musical instruments, game consoles and more. Output: Speakers, subwoofer, reverb, AV receiver, post amplifier, headphone, etc.