Features: 4 Channel mixing console with 2 XLR balanced input channels and 2 stereo input channels of 1/4 inch audio interfaces. Support both Power Bank supply and 110-220V universal voltage, can be used outdoors and indoors, portable and convenient to use. Using USB Input for connecting devices to play MP3, MP3 part with independant volume control, not occupying stereo channel 3 and 4. 3-band equalizer, the HI control governs the high frequency range, the MID control boosts/cuts the midrange frequencies, and the LOW control raises/lowers the gain of the bass range. Built-in reverberation delay effect, 48V phantom power supply, and BT function. Suit for studio recording broadcasting DJ network live.