... with usb,memory card and FM Subwoofer:1,Power: 60W 2,Speaker unit: 8 inch3,Impedance :4-8Ω4,Sensitivity: ... : 22*37.5*39.5CM Satellites:1,Power: 15W * 5 2, Speaker unit: 3"* 5 + 10" treble 3, Impedance : ... Centre-channel speaker: 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-3.USB ...