Size available:12.1", 15", 17", 19" Material: metal case Basic functions: 1. Built-in CF/SD card reader, easily replace the advertisement content 2. Can play advertising program circularly and automatically 3. Supports format: JPEG,AVI,MPEG1,MPEG2,MPEG4,MP3,VOB 4. Programmable timer (can turn on or turn off AD player automatically on schedule everyday) 5. With IR remote control 6. Built-in two speakers stereo 7. Multi-language OSD: English, Chinese, and others 8. Safety lock function, to avoid taking way the CF card 9. Strong shock-proof capability, especially applicable for moving environment 10. Can be used in any public areas, like supermarket, airport, lift, station, hotel, relax center, bus, commercial buildings 11. Wide power supply, AC 110V-240V, DC 8V-36V 12. TV tuner, VGA, S-video, RCA optional 13. USB port is optional, can move, copy, the content USB to CF card , and Motion sensor is optional