Not only about using an outline is needed: 4K+ 1080P ultra 2-ch car dash cam, alloy color housing, out-and-out refined sense 7-layers of molded sphere + aspherical lens ensure sufficient light input matches the large aperture to improve the video quality Night visual technology clear at night is as clear as day: Multiple technologies, the car dash camera will shoot video and save it once there is a crash 4K Ultra HD, large video file, upgrade the bottom layer to improve memory compatibility, store more videos, fast read/write, longer service life Specifications: DSP NTK96670 Image Sensor SONY IMX335 Video Resolution Front camera: 4K (3840*2160/30 fps) + rear camera: FHD (1920*1080/30 fps)Front camera: 2K (2560*1440/30 fps) + rear camera: FHD (1920*1080/30 fps)Front camera: FHD (1920*1080/30 fps) + rear camera: FHD (1920*1080/30 fps) Loop-record) 1min/3min/5min Anti-Shake YES(Software anti-shake) G-sensor Off / Low / Medium / High Recording function YES Video File Format TS Storage compression mode H.265 Camera angle 170&deg; Display 3-inch IPS HD Screen MIC Support MIC-2X4MM,42+-3dB Speaker Support 8ohm, 0.5W Extended Memory MAX 256G U1 Photograph Yes Image Resolution 3M/5M/8M/12M/16M/20M Image File Format JPG Continuous shot Off / triple shot / five consecutive shots <t