Overview take crystal clear videos & pictures day and night even in low-light scenarios. Specification: A1 General clarity A2 high definition A1&A2 Not very clear. A3 General clarity A4 high definition A5 high definitionRecordable both before and after A3&A4&A5 Not very clear. A6 high definition A7 high definitionRecordable both before and after A8 high definition4 inches Front camera: 6-glass / F2.0 aperture / 170 ° wide angle Inside camera: VGA 120 ° GPS tracker: NONE AV OUT: NO Rear camera: 6m cable / 2.5mm port Photo: Support The lens rotates: Manually adjust WDR: Support HDR: Support Visual Reversal: Support Video format: AVI Picture format: JPG Compression format: H.264 Battery: 320mah lithium polymer battery OSD Language: multi-language support G-sensor: Support Motion Detection: Support Delay stop: Support Loop Recording: Support, Does not leak seconds His recording: Support Parking surveillance: Support Front camera resolution: Max 1680x960 (30f / s) In-car camera resolution: HD640x480 (25f / s) Camera resolution: Max support 3m Working environment Operating temperature -40 ~ 70 Operating Humidity 15-65% RH Storage temperature-40 ~ 70 Package Content 1 * Driving Recorder