... usb,memory card and FM Subwoofer:1,Power: 60W 2,Speaker unit: 8 inch3,Impedance :4-8Ω4 ... 22*37.5*39.5CM Satellites:1,Power: 15W * 5 2, Speaker unit: 3"* 5 + 10" treble 3, ... 43.3*8.8*11CM Base: 29*29*2.5CM Features:1,The total volume of re-boot ... back to themid-point 2, Infrared remote control function3, CD.DVD.AC- ... Input4, Large screen, FM auto scan radio new model 2.1woofer speaker