Product detailsVSM (Virtual Sound MatrixBuilt-in USB and SD memory card function, Support MP3 music formatXTS Pro (Excellent True Sound Pro)USB Plus (mp3, Wma, Jpeg, Video files playability)Audio-In and Out ConnectableCompatible with DVD, Micro SD, Flash drive etcUSB SD InputAuxiliary InputProgressive ScanX-BassAM/FM Stereo TunerBluetooth EnabledVSM (Virtual Sound MatrixBuilt-in USB and SD memory card function, Support MP3 music formatXTS Pro (Excellent True Sound Pro)USB Plus (mp3, Wma, Jpeg, Video files playability)Audio-In and Out ConnectableCompatible with DVD, Micro SD, Flash drive etcUSB SD InputAuxiliary InputProgressive ScanX-BassAM/FM Stereo TunerBluetooth EnabledVSM (Virtual Sound MatrixBuilt-in USB and SD memory card function, Support MP3 music formatXTS Pro (Excellent True Sound Pro)USB Plus (mp3, Wma, Jpeg, Video files playability)Audio-In and Out ConnectableCompatible with DVD, Micro SD, Flash drive etcUSB SD InputAuxiliary InputProgressive ScanX-BassAM/FM Stereo TunerBluetooth Enabled