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 DJ, club, bar, party, studio, stage or more. Features: Made of high quality metal, sturdy and High quality. Mini size, portable and lightweight. 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 DJ, club, bar, party, studio, stage or more. Specifications: Plug: EU / US (Optional) Material: Metal Color: Black Input: AC 100-240V, 50/ 60Hz Output: DC 5V Item Weight: 170g / 5.99oz Item Size: 103 * 57 * 28mm / 4.05 * 2.24 * 1.10in Package Weight: 280g / 9.87oz Package Size: 13.7 * 13.7 * 5.2cm / 5.39 * 5.39 * 2.05in Package List: 1 * Audio Mixer 1 * Power Adapter 1 * User Manual (English)