?Easy to Install & Lifetime Customer Support?Vantrue offers lifetime customer support and an 18-month warranty. Please contact us immediately by message or email if you have any problem, we will get back to you quickly and help you solve it. Firmware is continuously updating for improvements and new features. ?Upgraded WDR Technology?The WDR (Wide Dynamic Range) allows the dash camera to perform optimally in various lighting situation by adjusting the exposure to create balanced images and footage, avoid high exposure in strong sunshine and enhance exposure in low-light or backlight situations. ?Cold & Heat Resistant with Supercapacitor?The dashcam uses a supercapacitor which can withstand extreme temperatures range from 14 to 158°F. It could prevent the risk of overheating and explosion, which also ensure the life duration as well as the high working performance of the dash cam. ?Reliabe Features for Emergency Recording?The 4k dash cam auto overwrites the old footage with new recording when the card is full. While the adjustable G-sensor detects a crash, the video of the current accident will be locked and saved automatically into event folder. That ensures important evidence is well protected without overwriting. Supports up to 256GB microSD cards. The Vantrue microSD card (: B07WWCLHGM, not included) is recommended. ?24/7 Hours Parking Mode?Low Bitrate recording mode enables the dual lens dash cam to recording at 720P+720P@15fps continuously for 24 hours a day at parking mode, and the motion detection, collision detection parking mode option enables the dual car camera to start record instantly at 2.5K 2560x1440P once detects movement or collision, which greatly save the memory space and gives you a peace of mind. Please hardwire it or connect it with external battery for parking mode. ?4K Dash Cam with Built-in GPS ?This dual channel dash cam supports live speed view in KM/H or MP/H on your dash cam during driving. Thanks to the included GPS mount, you can also playback the video with the route, speed, and location on Google Maps via our Windows and Mac with Vantrue GPS player, which make sure the speed evidence is protected when an accident occurs. ?Super IR Night Vision ?This front and inside adopts dual Starvis sensor, big aperture(F1.8 inside F1.4 Front),6 glasses lens and 4 IR LEDs, which provides a super Night Vision for capturing more important details when driving in the evening. The 4 Infrared lights make it easy to record passengers clearly even at night. ?4K Single Front or 1440P Front and Cabin Dash Cam ?The Vantrue N2S dash cam combines the front and cabin cameras into one, helping you capture the road ahead and inside your car in 2.5K (1440P+1440P@30fps). The 4K front camera can provide you with True 4K video at 3840x2160P@25fps in single recording mode, allowing you to easily capture any key evidence such as license plates or road signs. It’s your superior choice for Uber, Lyft, Taxi, Cab, Rideshare, and must-have for family road trip!.