Karaoke/PA stereo amp; 2 microphone mixing with Bluetooth(R)/RCA audio input; Microphone talk-over function; Dual-channel (A/B) digital amp design; 2 front & 2 back 1/4″ microphone inputs; 2 pair (L/R) speaker terminal/bind post connectors; 3 pair RCA (L/R) audio outputs; 2 pair RCA (L/R) audio inputs; RCA video input/output connectors; Effects loop (L/R) RCA connectors; Compatible with outboard effects processors; Input selector & digital key controls; Front panel rotary control center; Independent microphone audio controls; Audio master volume & microphone master volume control; Microphone echo/low/high/repeat/delay control; Music low/mid/high/balance control; Built-in ventilation cooling fan; Rack-mountable system; Bluetooth(R) 3.0 music streaming; 1,000W max power output; 500+500 @ 4ohm ; 350+350 @ 8ohm ; Signal-to-noise ratio: 65dB; T.H.D.: .5%; Freq resp: 20Hz-20kHz; Noise level: 35dB; Rack-mount brackets; Includes RCA cable, remote & power cable;