car dvr recorder 2ch dashcam mirror auto registrator 4.3 inches fhd 1080p front 170° rear 120° wide view angle g-sensor

2 ch dual lens, front main camera full hd 1080p 170 degrees wide view angle, rearview assistant camera vga 120 degrees which can be used as backup camera forming parking grid on the dvr screen. videos from 2 cameras can be simultaneously shown on the screen as picture in picture. one slight click on power on/off to turn off the screen while the recording continues, so it works as traditional rearview mirror. cycle recording function allows the car dvr to record seamlessly while the videos storage reaches its memory card max capacity, as it can overwrite automatically the oldest files. g-sensor of the dashcam can help detect a setting value of unusual shock or vibration, then the dashcam would lock current videos emergently in case of overwritten. these videos are good evidence for insurance and claim..syi