4.1 Channel multimedia speaker compatible with USB/SD/AUX/DVD/FM;AC 220V ~ 240V/50Hz;Total Power Output RMS(W) : 122W ( 50W + 18W x 4 );MP3/WMV/AVI;MP3/WMV/AVI;Dolby Digital - Dolby Digitel Surround Sound;AUX audio input compatible with DVD/PC/ TV;USB : YES, You Can Connect USB/Pendrive;Audio IN/OUT (Analogue) : YES;Video (Composite) : WMV, AVI, MP4;LED Display