car Rearview LCD Monitor (SERM-21) Fully Remote control Screen size: 4.5 INCH Auto blue screen when no signal Screen type: TFT-LCD MONTIOR Support VCD, DVD, MP4 and GPS Pattern: 16:09 Car Rear-view function automatically Resolution: 960(H)*RGB*234(W) on the rear-view mirror in car Signal system: PAL/NTSC 8 channel video and audio input Power consummption: less than 0.7W a staff line in the screen warn the distance between the car and the obstacle:2m/1m/0.5m Power supply:12V