3.1 Speaker, 3.1 home theatre ,USD Port, SD Card input 3.1 Speaker, 3.1 Multimedia Speaker S-302Output Power : 30W+10x3 (RMS)Frequency Response Subwoofer : 20Hz~150Hz / Satellite : 150Hz~20kHz Driver Unit: Subwoofer : 6.5" Satellite 3'" x 3 Size: Subwoofer : 140mm(W) x 300mm(H) x 295mm(D) Satellite : 95mm(W) x 210mm(H) x 135mm(D) Container: 742sets/20", 1800sets/40HQ