... .Material:Wooden. 1, 2.1CH DVD home theater system2, Compatible with DIVX, DVD, SVCD, VCD, MP3, CD, CD-R, CD-RW, HDCD, Kodak picture ... 8ohm5.25"Frequency:50-200HzFull-range speaker driver:15W*4ohm*2.75"Frequency:180Hz-20KHzS/N Ratio:≥85dBDistortion rate :1 ...