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. Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Plug Type :EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage: AC100-240V Colour:Black Material:Metal Package Contents: 1 x 4 Channel Mixer 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.