... usb,memory card and FM Subwoofer:1,Power: 60W 2,Speaker unit: 8 inch3,Impedance :4-8Ω4,Sensitivity: 80dB5,Frequency ... *37.5*39.5CM Satellites:1,Power: 15W * 5 2, Speaker unit: 3"* 5 + 10" treble 3, Impedance :4-8Ω4 ... -20KHZ 6.Product size: Guns: 124*11*9CMCM Centre-channel speaker: 43.3*8.8*11CM Base: 29*29*2.5CM ... Input4, Large screen, FM auto scan radio 2012 new model speaker