Napoer Car Black Box Traveling Driving Data DVR Recorder Camcorder Night Vision Vehicle Camera With 170 Degree Angle View Black 2.7-inch high definition screen, small and exquisite, great hidden performance. Loop video recording, deleting old files and then recording new ones automatically. Ultra wide lens with 170-degree view. Made of metal material, durable to use and helpful to dissipate heat. Bilt-in G-sensor. Can automatically protect the video from being deleted caused by gravitational acceleration in an accident.