1.2.1 ch home theater 2.RMS:30W+10W*2 3. ... 5. hot selling model by 2010-2011yearSpecification:2.1CH home theatre with remote controller 1,Output power:30W+10W ... woofer 4 inch,satellite3inch*23,Frequancy response:40HZ-20KHZ4,S/N:<70dB5,Dimension:wooferW270*225*225mm,satellite98*130*222mmPackage: ... 692*370*675mm/4sets Quantity:1550sets/40HQ 2.1 Piano home theater system speaker ,With usb ,sd ,vfd display, ...