4K Dash Cam for Cars, Dual Dash Cam with Ultra HD 4K Front and 1080P Rear Camera, Supercapacitor 3 inch Display Dash Camera with Hardwire Kit 24/7 Parking Mode G-Sensor Lock. Features : 【4K Ultra HD Dash Cam】Come with 4K front camera and waterproof 1080P rear camera, vividly captures the license plates and road signs. The clear video evidence protects you from fake accident, making your life easier and Safer.. 【Must Use a Real U3 SD Card】 Because it's a High Resolution 4K car camera, please ensure to use a brand U3 SD card and also format it before first use. ★If you use a U1 low-speed SD card, the camera will make beeps to remind you that the card is not compatible, then please replace the SD card with a U3 High-speed one.. 【24-hour parking monitoring】Equipped with a dedicated intelligent step-down line, connect to the normal power to realize 24-hour parking monitoring, low-voltage automatic power-off, and protect the battery from power loss.★Warm Tips: The standard length of rear camera cable is 19.5ft, please feel free to contact if you need a longer 27ft cable.. 【Heat Resistant with Super Capacitor】The dashcam is supercapacitor powered instead of lithium batteries, which are built to survive extreme weather conditions from -4°F to 158°F. It's higher security than others and also gives a longer life-span than lithium-ion battery dashcams.. 【Not Afraid of Dark Light 】Equipped with Sony image sensor, 6 full HD glass lens, F1.8 large aperture lens, even in low light environment without auxiliary light source, it is easy to get clear and color accurate images.. 【Loop Recording saves more space】Real-time recording is uninterrupted. Start Loop recording with the car, no frame loss, no second loss, automatically overwrite earlier recording after the memory card is full, seamlessly recycle the memory card space.. 【G-sensor】Collision sensor accurately records useful information. The dashcam built-in gravity sensor will automatically record and save the emergency video after a collision to prevent the video from being overwritten even in loop recording. Accident scene can be truly restored and give you piece of mind.. 【Mini 3 inch Display Dashcam】Keep the original appearance of the car. Small MINI body, quick installation in minutes, equipped with a special suction cup bracket for the dash cam, which is more firm, does not fall off in summer, does not damage the windshield of the car, does not block the line of sight, does not occupy the original rearview mirror, and ensure driving safety.