90W max; 45W x 2 @ 4ohm RMS; Freq resp: 20Hz-20kHz; Speaker imp: 4ohm -8ohm ; Class-T circuit design; Built-in Bluetooth(R); 1/4 microphone, L/R RCA & 3.5mm aux inputs; 4 push-type speaker terminals; Rotary treble, bass & master volume adjustable controls; Short circuit, overload & overheat protection; Source input selection; Includes power adapter; Dim: 1.6H x 4.6W x 6D;