Multimedia Speaker with FM, Speaker 1.Output Power:20W 2.Impedance:4 ... 40Hz-20KHz 4.Speaker unit:4"+3"*2 2.1 speaker, computer speaker, multimedia speaker, iphone speaker, ... speaker system, subwoofer speaker,karaoker speaker.2.1 Theatre Speaker Specification:Model No.:XC-8808.TDA2030* ... mm) Function:USB/SD card reader, Remote Control, FM function. Karaoker Function,LED screen, customer can optionPacking ...