... hard disk,U disk, mobile HD ,SD card. 2. Support for multimedia format, as VCD(MPEG1/DAT),DVD (MPEG2/VOB), MPEG4(DIVX ... )*280mm(width)*55mm(high), weight:about 3KG. The size coordinate with the volume size of DVD machine/amplifier, looks very nice. . Aluminum panel ... manual of user ,please download from our company web site. HD karaoke player ,Support VOB/DAT/AVI/MPG/CDG/MP3+G ...