Ezonetronics Car Camera | Car Video Recorder Full HD 1080P | Car Video Camera 4.3 Inch LCD with Dual Lens for Vehicles Front & Rearview Mirror | DVR Vehicles Dash Cam 2010 https://www.youtube.com/watch?v=_vklNm-FvEA This product uses high-performance chips, high-definition video, support 1080P true full HD video. Please read this manual carefully before using and keep it, and we hope this product can meet your needs and long-term service to you! 3 functions in 1, Rearview mirror + front camera DVR + rear view camera. 120 degree wide angle lens with Delay power off function&Motion detection function&Automatically turn on/off function&Seamless loop-cycle recording function Waterproof rear view camera- automatic backup camera featuring active visual guidelines when reverse is selected,please use our car charger so that the back up camera can work properly because our car charger is specially treated to GND. Battery is used for emergency. It can not last long for unit running, please connect the car charger all the time.Reach our customer service help via email: support@ezonetronics.com