provide beautiful sound and with various accessories function preferential price reasonable , is the ... RATIO:>=75dB Speaker specifications:3",magnetically shielded,3Ω,5W Subwoofer:5.25",magnetically shidlde,4Ω,20WDimension: Subwoofer: 188*320*300mm Satellite ... /40"GP 1439sets/40'HQ Package: 2sets/carton Multimedia speaker system