... 4.we are the factory of OEM small dvd player with karaoke function functions:1.indenpendent 5.1 channel output2 ... .with usb slot3. LED display(optional) 4.with karaoke functionbasic feature:1.Single chip progressive ... operation system5.multi (32) languages caption, 8 languages dubbing6.Compatible with DVD, SVCD, VCD, CD-DA, CD-R, CD-RW, DVD ...