CHORTAU dash cam simultaneous records with Super High Resolution 1080P FHD Lens 170°wide-angle, clearly capture the license plates as well as road signs during the day and night. Powerful car cam for cars, truck, SUV, provides the most important evidence for car accidents. When the storage limit is reached on the memory card, new recordings will automatically overwrite oldest and unlocked videos. Triggered by G-sensor, CHORTAU dashboard camera can automatically detect a sudden shake/collision and lock the footage to prevent the video from being overwritten even in loop recording. Accident scene can be truly restored and give you piece of mind. This car camera will automatically turn on and lock the current video to save evidence when the car takes collision even without charging. Monitoring your car within 24 hours.