Model No. PDVD-868 Portable DVD/VCD/CD/MP3 Player Super-slim (18mm) & Light Design for convenient travel; Optical digital output for DTS & Dolby Digital AC-3 video; Built-in audio of 5.1 sound channels out; Virtual Surround Sound (V. S. S.) output; Play DVD,VCD, MP3, ESP (Electronic Anti-shock) functions. Functions Super Thin & Light Design for convenient travel; Built-in Lithium ion rechargeable battery; Full functions, Slim size remoter for easy operations and convenience; Built-in Stereo speakers for great sound just about anywhere. Audio Optical output for DTS and AC-3?Dolby Digital?Surround Sound; Virtual Surround Sound; 96KHZ/24-bit Audio D/A converter for enhanced system flexibility digital audio out; On-Screen Menu icons to help guide operation. Video Horizontal definition 500 lines, image resolution: 480 X234; 27MHz/10-bit Digital video-out (optical) for enhanced system flexibility; Auto switching Field/Frame still for added versatility; Frame advance (Forward & Reverse) for incredible contro. Operating Instructions Twin laser for DVD/CD Playback; Chapter Preview, Standard remote control; Hi-Speed Smooth Motion Scan: 5 Speed up to 100 Speed allows crystal clear scan quality; -while locating desired locations on a disc; On-Screen Menu Icons to help guide operation; Using high CPU, full-functions control; Automation saving for screen; Standard Audio & Video line output, connect to TV or any audio amplifier ; Signal system: PAL/NTSC, easy system shift; Rechargeable battery, about 180--240 minutes of Playback with battery pack.