... control+VFD,karaoke 2.Adapts to many audio devices 3.Passed FCC,CE 2.1 home theater ... 120Hz-18KHzDistortion@ REF:<=1%Speaker Unit:Satellite:3"*2Subwoofer:5.25"Product dismensions:Satellite(W*H ... control, LED display2. volume, bass, treble control3. 2.1 home theater adapts to computer, laptop, DVD, ... other audio input4. 2.1 home theater with FC, CE certificates Accessaries:3.5mm stereo audio cableuser ...