4-Inch HD 1080P Dual-Lens Night Vision Front And Rear Video Driving Recorder Parameter: 1. Focal length range: front 170 degrees and rear 120 degrees 2. Display: 4.0 inch IPS screen 3. Lens: 170 degree viewing angle glass lens 4. Lens aperture: F2.0 aperture 5. Front camera: 1920x1080P, 1280x720P 6. Rear camera: 720x480P 7. Loop recording (loop recording): Off 1 minute 2 minutes 3 minutes 5 minutes 8. Video format: MPEG-4 9. Audio: Built-in MIC and speaker 10. Gravity sensor (gravity sensor): built-in 11. PC interface: USB2.0 12. Rear camera cable length: 5.5m 18 feet 13. Power interface: 5V 1.5A 14. Built-in battery: 450 mA 15. Languages: English, Chinese, French, German, Italian, Spanish, Japanese, Russian, Portuguese, Korean 16. Support up to 32GB Micro SD (not included) 17. Dimensions: 84x48x10 mm 18. Weight: 455 grams Features: 1. Built-in gravity sensor, when an emergency brake or collision occurs, the collision video is kept separately, and the loop recording will not cover it, and the scene of the accident can be restored 2. Mobile monitoring, retaining evidence 3. 150 degree wide angle, wide field of view coverage Packing list: - Car DVR video recorder x 1 - Rear view camera x 1 - Rear connection cable x 1 - Car charger with USB port x 1 - Bracket x 1 - User manual x 1