MIX LIKE A PRO Long throw linear faders for that pro feel! Mix microphones & instruments along with smartphones, tablets, mp3 players and computer devices. USB INTERFACE Output audio directly via USB for better recording quality; compatible with Windows, MacOS, Linux and Android (iOS not supported). SUPER SMALL COMPACT SIZE Easily fits into a briefcase or backpack and can store in a desk drawer. STEREO 3 IN / 2 OUT CONFIGURATION 3 stereo channels (3.5mm / 1/8") includes 1 AUX IN; 1 output jack (3.5mm), 1 headphone jack and USB Audio Out. AMPLIFIER GAIN Increase input sources volume levels by up to 45dB with LED indicator built in to monitor signal levels. DISCRETE HEADPHONE LEVEL CONTROL Adjust your headphone level independent of main output level. FLEXIBLE POWER Power the mixer from any USB charger, USB port, USB OTG-equipped smart device*, or USB power banks (may not be compatible with power banks with higher than average low-current shutoff features). Technical details Controls and Jacks 3 x 3.5mm Stereo Inputs (Can be split Into 4 x 1/4" mono; adapter required) 1 x 3.5mm Stereo Outputs and 1 x 3.5mm Stereo Headphone Output Power / Overload Indicator (LED shows power and presence of overload/distortion) EQ Knobs For Ch1 and Ch2 Master and Channel Volume Sliders USB Power / Output Jack Specifications Gain: Max. 45dB Power: 5V Micro USB power source Weight & Dimensions: 3.2oz / 92g; 2.5 x 4.1 x 0.9" / 10.5 x 6.5 x 2.4cm Package Contents: MINI MIXER 2, USB to Micro USB Cable, 5V/1A Adapter, Dust-Proof Pouch, Owners Manual One year limited warranty