Rolls RM67 Mic/Source Mixer Three XLR mic inputs with switchable phantom power and input padding - Clip LEDs for each Mic input Mute jack, contact closure to ground main output mute - Master Level control Remote Volume jack (connects to an optional 100K ohm potentiometer) - Stereo Record Out Priority ducking/talk-over for microphone paging, and jukebox - Mic Insert jack for adding signal processing to the Mic Inputs Four stereo RCA line/consumer level inputs - Master Bass and Treble controls (sources only)