... design. 4.Material:Wooden. 1, 3.1CH DVD home theater system2, Compatible with DIVX, DVD, SVCD, VCD, MP3 ... Universal power: AC 110-240V, 60/50Hz16, Include 5 satellite speakers(wooden) and 1 subwoofer(wooden)17, ... Built-in 5.1ch amplifier18, Output Power: RMS150W (20W*5+50W) Technical parameter:Subwoofer driver ... N Ratio:≥85dBDistortion rate :1% 3.1home theater surround sound system