... design. 4.Material:Wooden. 1, 3.1CH DVD home theater system2, Compatible with DIVX, DVD, SVCD, VCD, MP3, CD, CD-R, CD ... -RW, HDCD, Kodak picture, JPEG, MPEG-4 (for Divx DVD), etc3, All region code design4, Progressive scan5, PAL/NTSC System6 ... :180Hz-20KHzS/N Ratio:≥85dBDistortion rate :1% 3.1home theater surround sound system