Loop recordingIt is a video recording technology, which can constantly overwrite the old video during the recording process, thus achieving the effect of loop recording. Infrared functionEnhance the night vision function at night to make the night video clearer.Even in low-night conditions, it capture clear videos and photos in your driving or parking moment. WDR Wide Dynamic Range, and super wide dynamic make the particularly bright and dark parts in the scene can be seen clearly at the same time. (Wide dynamic range is the ratio of the brightest brightness signal value that an image can distinguish to the darkest brightness signal value that can be distinguished. )170-degree wide angle, super-large lens angle, wider recording range, perfectly capturing every blind spot. function the machine will automatically save the video when the accident happens as an undeletable file. Wi-Fi and APP ControlComes with Wifi function, you can watch, playand download videos via free APP.In addition,you can easily share recorded videos with friendsand family. Superior Night VisionThe recorder offer the latest built-in highly sensitive night vision image sensor, which will automatically compensates for light/dark spots and balances exposure, makes all scene details are recorded vividly. 4 Channels 1080Front & Rear & Inside Dash cam4 Lens Front & Inside & Rear Camera:1080P +1080P+1080P+1080P,4 Channel Recording at the same time.The 4 Channel can be displayed on the main frame at the same time.Multiple Angle camera provides more comprehensive security for your car. 24-hour parking monitor-hardwire (optional: waiting 24 hours a day (to ensure that the car itself has electricity). When the car is started, it is recorded normally. After the car is turned off, if it is hit or vibrated, the machine will immediately wake up to record and keep the video as evidence. Don't worry about the situation that the car is turned off and you can't record the video.