Features: The sound mixer can be controlled by linear audio input and can be connected to 2 sets of microphones. Dual Power Supply Modes - powered by 5V power bank(not included) or power adapter. Features separate reverberation effect and high/bass adjustment. Support functions of U-disk playing MP3 and recording, audio broadcasting, BT playing. With control panel, including knobs of previous music, pause, function switch, next music.Stable, , small and elegant, suitable for stage, families and KTV rooms, enjoy singing and have fun with it. Specifications: Plug Type: EU Plug, it applies to Indonesia, Germany, France, Spain, Italy and so on voltage: AC220V Material: plastic colour: A-black Package Contents: 1 x Stereo 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.