... dBFrequency response:50Hz-150Hz, 120Hz-18KHzDistortion@ REF:<=1%Speaker Unit:Satellite:3"*2Subwoofer:5.25"Product dismensions:Satellite(W*H*D):220 ... (sets)-20'G/40'G/40'H:640/1260/1572Description:1. 2.1 home theater with built-in USB and SD card reader, FM ... antenna, remote control, LED display2. volume, bass, treble control3. 2.1 home theater adapts to computer, laptop, DVD, VCD, CD, MP3, TV, mobile ...