This dash camera has 170 front camera and 130 rear camera, monitoring the roads ahead and behind the car simultaneously. Novatek 96650 chipset and Sony IMX323 lens sensor provide high-quality videos beyond your expectation. 1920x1080/30fps of front dashboard camera and 720x480 of rear camera guarantee full HD video quality. The IPS screen provides a wide range of viewing angles. You can also preview the road clearly whether view the screen from the front or from the side. When the car engine starts, the camera will automatically power on and start recording, save files and power off when the engine stops. The car camera can also standby after parking. When shocking is detected, the camera will turn on and take a 30 seconds video automatically. Advanced G-Sensor: Automatically set off and lock the current video to distinguish responsibility when the car takes collision. It would be a independent witness to avoid unnecessary disputes. Loop Recording: Automatically overwrite the previous recordings with new files except locked files when the memory card is full.