[Music Mixer Board]The 12-channel Bluetooth mixer, built-in wireless Bluetooth, reverberation effect, comes with USB interface, support U disk playback function. [48V Phantom Power]The sound mixer have 4 XLR inputs with phantom power. (If 1/2/3/4Channel Use 48v Condenser Microphone Need To +48v Button Phantom Power)you can to switch 48V phantom power and ultra-low noise distortion enables the audio mixer to be used with condenser microphone. this compact DJ Mixer provide total dynamic control mixer is great for performance, live gigs and Karaoke. [USB Audio Interface / BT Function ] This bluetooth mixer enables users to wirelessly stream music from smartphone. The USB interface can be connected to your USB stick/fast memory/MP3 to . flash drive or Bluetooth device to mix and record. After pressing the MENU button,Use the built-in controls to play/pause, skip tracks and switch between modes. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Voltage: AC100-240V Colour: Black Material: plastic + metal Package Contents: 1 x A12 Sound Card 1 cord 1 x English Manual 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.