Solution:MTK+SANYO ORIGINALLY * Optical fiber output 5.1 Channel * Built-in Dolby Digital decoder, DTS digital output * Compatible DVD/DVCD/VCD/SVCD/CD/CD-R/HDVD/MP3,JPEGetc. * External LCD line controller * Built-in chargeable lithium battery can play 3.5 hours constantly * Intelligence charging function * DVD anti-shock function (5 s DVD,10 s VCD,20 s CD,30 s MP3) * External 9V DC power supply input port * Zoom of picture function * Multi language menu * Support multi regional disc * Delicate outlook design, nice to look, easy to carry * Unit thickness:30mm * Mpeg4 function(optional)