... to many audio devices 3.Passed FCC,CE 2.1 home theater with usb fm usb,1.USB,SD/MMC,FM,remote control+VFD,karaoke2.Adapts ... dBFrequency response:50Hz-150Hz, 120Hz-18KHzDistortion@ REF:<=1%Speaker Unit:Satellite:3"*2Subwoofer:5.25"Product dismensions:Satellite(W*H*D):220 ... to computer, laptop, DVD, VCD, CD, MP3, TV, mobile phone and other audio input4. 2.1 home theater with FC, CE certificates ...