product presentation1. Mini Active Stereo Mixer is a 5-way active stereo mixer for extended control of tuning, mixing instruments, CD players, tape players, computers, mobile phones, tablets, etc. It is compact and thin desktop mini design, compact in size, compatible with any device2. Power supply adopts USB 5V power supply suitable for outdoor mobile power supply3. Independent Audio Control: With independent audio source channel volume control knob design, you can adjust the volume of each input separately, to adjust the listening experience after mixing, and control the volume of each input independently4. Five-way stereo input mixed output level signal gain +20dB5. simple installation: input and output plug and play easy installation, you can enjoy different audio experience, output with earphone monitoring interface Product ParameterInput channel: 5-way stereo input RCA interfaceOutput channel:3.5mm/RCA interfaceInput impedance:100K OhmOutput gain:+20dBFrequency response: 20Hz-20KHzSignal to noise ratio: more than 107dBTotal Harmonic Distortion: less than 0.08%Intermodulation distortion: less than 0.01%Power supply:USB 5VNet weight: 0.38kgGross weight after packing: 0.53kgProduct size: length 130 mm X width 77 mm X height 38 mmPacking size: length 200mm X width 185mm X height 55mm Kit list1 X Mini Stereo Active 5-way Stereo Mixer1 X USB power cord, length 120CM1 X USB power adapter US standard