40W x 2 max; 10% RMS @ 4ohm ; Bluetooth(R); Freq resp: 20Hz-20kHz; Signal-to-noise ratio: 75dB; USB charging port; Switchable microphone pager & mixing/karaoke modes; Page mode allows voice transmission over microphone; Mix mode allows voice & music transmission; 2 aux & CD inputs; Treble, bass, balance & master volume controls; 4 push-type speaker terminals; Input selector switch; RCA & 1/4 headphone outputs; 1/4 microphone input; Built-in short circuit & power surge protection; Compatible with audio devices; Rotary master & microphone volume controls; Front-facing control panel; LED indicator lights; Dim: 2.87H x 7.48W x 5.31D;