The Coby TF-DVD500 Portable DVD Player is a theater you can take anywhere. Its 3.5" screen displays movies in your choice of 4:3 or 16:9 aspect ratios. In addition to DVDs, you can view JPEG photo files and listen to MP3 files with on the included headphones. The TF-DVD500 is compatible with NTSC and PAL video standards. The rechargeable lithium-ion battery provides up to 2 1/2 hours of viewing time for DVDs and up to 6 hours of listening time for CDs. The battery pack doubles as a stand for the player, so you can watch at a comfortable angle. An optical audio output and composite video connections let you use this player in your main home theater setup.