1) Screen size: 8" (4:3) 2) Resolution degree: 640 x 480 3) System: NTSC/pal 4) Power supply: DC 12V 5) Power: about 7W 6) Service temperature: +5oC-+40oC 7) Storage temperature: -20oC~+60oC 8) Video: two-way video input, V1 / V2 switchover 9) Blue screen in case of no signal 10) Special reversal switchover function for reversal back sight: at the time of reversal, images can be switched over in four directions 11) Keystroke and remote control operation 12) Appearance size (L x W x T): 385 x 148 x 23mm