Mini audio mixer is a stereo 4-channel mixer for you to mix microphone, guitar, bass, keyboard, electronic drum, etc. and enjoy the reverb you made. It has ultra low noise and adjustment, is suitable for DJclub, bar, party, studio, stage or more. Features: Ultra low noise design, no hum hissing and audible noise added into the system, pretty transparent, fluent sound streaming. 4-channel mixer allows you to mix microphone, guitar, bass, keyboard, electronic drum, etc. and enjoy the reverb you made. The modern design of the passive mixer looks great on any desktop, with large controls that are easy to use and small enough to avoid for tangles of wires, clothing etc. With DC 5V USB interface, the mixer can be powered by adapter, power bank, laptop, etc. Suitable for DJclub, bar, party, studio, stage or more. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Voltage: AC110V Specifications: Output: DC 5V Item Weight: 170g / 5.99oz Item Size: 103 x 57 x 28mm / 4.05 x 2.24 x 1.10in Material: Iron Color: As shown Package Contents: 1 x Audio Mixer 1 x Power Adapter