Unique. The most amazing audio sound mixer one can own 3 channels with XLR, Line and Insert inputs. Can connect XLR and TRS type mic, stereo, EQ and other audio devices. With USB MP3 input interface and LCD. 48V phantom power. Headset monitoring, recording, and stereo equipment output jacks. with both Main out and AUX out. High, Mid and Low 3-bands equalizer. With Return and FX Send jacks for receiving the signal from external effects devices. Each channel has Aux, Effect, Gain, Bal, Channel fader knobs and Peak indicator. Echo, Delay, Phone, Channel fader, Aux, Effect controls and Signal LEDs on the Main out panel. Great for Recording DJ Stage Karaoke to have a perfect sound effects. Model: F4-USB Power adapter: EU Input 100-240V AC 50/60Hz 0.23A Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Colour:BLUE Material:METAL Size:21.5*23.5*3.8cm Package Contents: 1 * Mixer Console 1 * Power Adapter 1 * instruction manual Only the above package content, other products are not included.