Features: 8-channel digital mixing console with 4 LINE IN/MIC combined inputs for unbalanced microphones, 4 TRS mono/stereo line input jacks for connecting electronic keyboards and other audio equipment. TRS stereo MAIN OUTPUTS to connect to the power amplifier driving your main speakers; RCA (LR) outputs for connecting recording applications; 6.35mm TRS PHONES jack for connecting monitor headphones. Each channel has TRIM(adjusts the input signal level), 3-band EQ(High/Mid/Low), FX and PAN control knobs; and the 9 separate faders for quick volume adjustment make your operation more flexible. Supports USB/SD MP3 player function and BT connection, and the LED display and control knobs for more convenient and more professional operation, you can add some accompaniment music easily. Built-in 99 DSP effects that can be selected by PROGRAM control knob; built-in 48V phantom power for using with a condenser microphone; with MP3 recording function allows you to create your own music.