Dash Cam, CiBest Car Dvr 2.7" LCD Screen Rotating Dual Len Vehicle DVR Road Dash Video Rear View Camera Recorder Traffic Dashboard Accident Recorder CiBest Dual Lens Dash Cam, Front lens: 140 wide-degree,Back lens: 120 wide-degree, its front/back lens can be rotated for 270 degree to the front or back; Protect yourself from fraudulent lawsuits on the road; GPS Module,Gravity Sensor Built-in gravity sensor G-sensor: can record the gravity sensing information and according to the car up and down, left and right, front and rear offset determination, when traffic reaches a certain value is considered abnormal and automatically lock the current video for protection . Using random specialized software, watch the video on your PC, but also saw changes in gravity sensing data to trace the course of gravity in the road NIGHT VISION and LOOP RECORDING: The night vision feature will also allow you to make clear recordings in relatively dark environments; Loop recording provides unlimited storage from the TF card, which will automatically overwrites the oldest footage when the memory card gets full GPS and DELAY STARTING FUNCTION: GPS scanning and positioning, travelling track restoring; delay starting function, which can prevent it from damage caused by pulse current occurred at the moment of vehicle starting, using random specialized software, you can watch the video on the computer, and through the Internet link Google Maps at same time , showing lane track on the map, the route of the vehicle retrospective. WARRANTY: We provide 2 months return for any reason, 7 months exchange for defective item, 1 year warranty for this item from the order day