3 discreet Bluetooth® registered inputs with individual volume controls and antennas Pairing buttons and status LEDs (blue) for each ®registered input Class compliant USB Audio for Record and Playback 3.5mm line input (disconnects USB input audio) Pre-fader signal LEDs (green) on each channel Source selector for solo monitoring or Mix All Mode Shelving Bass and Treble Mix EQ Master volume control with 3-color LED (green, yellow, red) Power LED (yellow) XLR line output (+20 dBuBalanced) 20W mono Class-D amplifier