Item Type: Stereo Mixer Model: AU 602 Material: Aluminum Alloy Power Supply: DC 5V Jack: 6.3mm, 1/4in Continuous Use Time: 30 hours Amplification: 5 times (14db) Indicator Light Status: 4 consecutive flashes means 4 grids of electricity, 3 times means 3 grids, and so on, it is always on when fully charged Battery: 3.7V 250mah 502030 lithium battery (built in battery) 1、6 Channel Mixer: 6 channels input and output simultaneously, can be connected to 2 audio amplifiers or other audio devices, the volume can be adjusted independently.  2、Multiple Outputs: Support 2 channel mono output, can form a set of stereo output, support mono and stereo switching, form a mono 6 in 2 out or stereo 3 in 1 out.  3、Good Performance: The stereo mixer has 6.3mm interface, audio amplification 5 times (14db), with good battery life, and can work continuously for 30 hours.  4、Aluminum Alloy: The mixer shell is made of excellent aluminum alloy, light and corrosion resistant, stereo switch box, with lossless signal and less interference.  5、Adjustable Volume: Each channel volume can be adjusted to the most suitable frequency to improve sound quality, ideal for home theaters, sound systems, etc.