Technical Parameter: Screen size: 7 inches Display Mode: 16:9 TV System: NTSC/PAL Resolution (pixels): 480(W)識GB?34(H)=336960 Power supply: DC 12V Operation temperature: 0`c ~ +50`c Storage temperature: -10`c~ +60`c Product size: 190?80?0mm Unit weight: 2.8Kg Function description: 7 inches wide view angle 16:9 display mode Adjustable image brightness/color/contrast NTSC/PAL automatic identification 4?5W Amplifier 1 AV input and 1 AV output Video signal disappear, display blue screen Manual stretching out & drawing back and all around circumrotate adjusting Card style remote control