It is a Car Rearview Mirror DVR Video Recorder with Dual Lens which could greatly provide a nearly all-round view of the road condition to a large scale. The front one with 130 Degree Wide Viewing Angle is responsible for recording and the back one with 4 LED Lights is used to show you clear image and accurate reverse leading line so as to help your parking even at night.</br>Support Loop Record with optional recording time of 1min/2mins/3mins which allows video files save themselves as soon as time's up and then seamless continuously record new video. The unlocked recording clip will be automatically deleted if the SD card is out of storage so you don't need to do it manually. After connection with car power supply it will automatically record (stop recording) after car power on/off.</br>Anti-dazzling Blue Mirror can effectively weaken light intensity to reach comfortable viewing while remains clear reflection. 4.3 inch LCD Large Screen supports PIP (Picture in Picture) that you can simultaneously see image from front and back with an extra small window in the right side. A proper size with large mirror surface while thickness is as low as 0.8cm (approximately) will not burden your car.</br>24-hour monitoring is realizable when you use Car Charger Hardwire (included) to directly connect to car battery and with this function?? you can track down those who damage your car. G-sensor is one of the most important functions in DVR?? which is possible to save the current video files as evidence while emergency happens. Anti-shake is able to keep stable and clear image when recording.</br>If you have any question