... ,Speaker unit: 8 inch3,Impedance :4-8Ω4,Sensitivity: 80dB5,Frequency Response: 20HZ-200HZ 6.Product size: 22*37.5*39 ... + 10" treble 3, Impedance :4-8Ω4, Sensitivity:85dB 5, Frequency response:120HZ-20KHZ 6.Product size: Guns: 124*11*9CMCM ... -3.USB.SD Card Input4, Large screen, FM auto scan radio 2012 new model speaker