4" 2.5D HD 1080P Dual Lens Car DVR Video Recorder Dash Cam Smart G-Sensor Rear Camera 170 Degree Wide Angle Ultra Resolution

and loop recording system will automatically overwrite the non-essential part when the memory card gets full. Smart G-Sensor: Triggered by G-sensor, the dashboard camera will automatically lock videos of unexpected incidents, it can help to address accident and distinguish responsibility. *Motion detection: Will turn on the video when the front movement is detected, otherwise the recording will stop. *Loop Recording: Seamless Loop Recording system provides theoretically unlimited storage from the SD card. Smart safety detection system will always keep the important fragments in your SD card,.syi