Functions: Built-in video and speaker systems; long-time playing Reliable and with remote control function. Locking system for anti-theft, preventing the player and storage devices from stealing. Technical specifications: Capacity: 1GB-8GB Player format: MP4(AVI: DIVXXVID)DVDVOBMPG2VCDDATMPG1MP3JPG Power Input: 110 - 240V AC, 50 / 60Hz Display parameter: Screen size: 19 inch TFT-LCD  Resolution: 1440X900 Aspect ratio: 16 : 9 Color: 16.7M Brightness: 450cd/m2 max Response time: 5 (Tr/Tf) ms View angle: up-down 90 / left-right 90 Contrast ratio: 500 : 1 type View angle: left-right 160' / up-down 130 Contrast ratio: 700 : 1 type Operating temperature: 0 ?C 50 ?C Storage temperature: -20 ?C 60 ?C