Dual Dash Cam, Crenova 5"LCD 170&deg;1080P Dual Lens Rearview Mirror Car DVR, Car BlackBox for Vehicles Front and Rear Dvr, with 16G Card Support G-Sensor Automatic Loop-Cycle Recording 1. Dual Channel: While using two cameras, you can achieve up to 240 degree view. Simply adjust the cameras in a relative same direction, and using the LCD screen, you can keep stretching the view. 2. Video Resolution: video resolutions of dash camera is to record at 1080p HD front Lens with backup camera. 1080p designates a resolution of 19201080 pixels. 3. Night Video Quality: Dashboard cameras with a resolution of 1080p or above capture decent video during the daytime. Dual Camera enables a night mode to enhance recording in dark areas or night time. 4. Loop Recording: when the SD card is full, the camera will overwrite the previous recordings with the new files. You don't need to worry about the recording when the memory is full. 5. G-sensor: Automatic ignition/motion/crash/vibration detection and recording with G-sensor, monitoring while parking, automatic display off for energy saving, automatic device off after engine off.