Wide View Angle Front and Back Equipped with an 170° wide-angle lens to capture 4 lanes of traffic and record more than just the car in front and 130° in back. This allows you to record road signs, road markings and number plates fair clearly. Auto-reversing Camera Mode Thieye dash camera display screen will automatically show full rear view with parking guide lines when the car reverse gear is engaged. The waterproof rear view camera will help you to park your car easily and safe. Emergency Recording The car dash cam with built-in adjustable G-Sensor, current footage will be locked and protected in the SD card when the G-Sensor is triggered by sudden shake collision, provide you significant evidence when something unexpected happens. Clear NIght Version Equipped with F/1.8 6-glass lens large aperture gathering 20% more light than F/2.0 , together with wide dynamic range(WDR) adjusting the exposure to create balanced images and footage