... Center/surround: 200Hz-20KHz • Woofer: 20Hz-200Hz • Sensitivitily:≥8dB±3dB• With FM/USB/SD card reader, • Full function remote control 3 DVD ... USM(Virtual Sound Matrix)• USB direct (MP3,WMA,GPEG,Video files playablity.• Portable In(connectable with portable audio product)• Multiple playback•Plays ... CD-R, CD-RW• Audio CD,CD-R, CD-RW• MP3,WMA,JPEG• Semi Karaoke function• Fanfare,scoring, 2Mic, inputs, CD ...