4-channel stereo line mixer Microphone input with 2-band EQ (balanced XLR-1/4" combo) Stereo line input (rear mounted RCA inputs, front-mounted stereo 1/4" and 1/8" [3.5mm]) Bluetooth connectivity to wirelessly stream music USB port for use with Samson Stage XPD Series USB Digital Wireless Systems (sold separately) and phone charging Voiceover control with priority ducking and variable hold time Rear panel master volume control 15V phantom power Mono/Stereo output switch Compact, half-rack steel chassis Rackmount kit and power adapter included