Mini audio mixer is a stereo 4-channel mixer 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, , studio, stage or more. Features: Ultra low noise design, no 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, , studio, stage or more. Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , 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 Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.