***All Camera Come With 1 Year Local Official 70Mai Warranty*** A800s Specification: 【Up to 4K Resolution with 140°FOV】 With Sony IMX 415 CMOS image sensor, records 4K UHD videos with a wide-angle 140° FOV. Combined the optional rear cam*, every important detail in the front or rear of the vehicle can be recorded clearly. * Minimun 32GB SD card required for 4k resolution. *In front-vision recording mode, the max resolution is 3840*2160. In dual-vision recording mode, the max resolution for front and rear view will be 2560*1600 and 1920*1080 respectively. 【Super Night Vision with 3D DNR】Achieves stunning video and vivid, clear images even in low-light conditions using a 3D DNR tech, F/1.8 aperture lens and a smart algorithm. 【3-inch HD Display Screen & One-button Switch】 View your car’s surroundings easily on A800’s 3” high definition screen. With a simple press, you can easily switch between the front and the rear views. 【Driving Safety with ADAS】 Assist you while driving with lane-departure and forward collision warnings that help you avoid accidents. 【In-car Guardian for 24/7 Protection】 Parking Mode* is automatically activated, detect any hit-and-run collision and immediately begin recording. *Need Install optional Hardware Kit 【GPS Built-in】 An accurate trip computer, storing data that can be viewed conveniently in-app. 【Loop Recording & Evidence Protection】 loop and stores it locally on a Micro SD memory card, safely secured from overwriting. 【In-app Access & Instant Share】 No network is necessary, connects using its own Wi-Fi for full instant access to stored videos. A500s Specification: 【 1944P 2.5K Front & 1080P FHD Rear 】Featuring 6 Lens, F1.8, 1944P HD with WDR 140° wide angle that adjusts exposure & captures more detail both in darkness or strong light, producing super clear and vibrant images. 【2" IPS SCREEN & 140° WIDE WIDE ANGLE】70mai Dash Cam A500S comes equipped with a 2" IPS screen to view your recordings. F1.8 aperture 140° wide FOV (Field of View) with 6 layers of lenses effectively enhances image/video brightness and reduces blind spots 【BUILT-IN ADAS FOR MAXIMIZED SAFETY】With built-in Advanced Driver Assistance Systems (ADAS), modern AI powered technology designed to boost driving safety, 70mai Dash Cam A500S provides lane departure warning, forward collision warning and more to safeguard your daily trips 【G-SENSOR & EMERGENCY ACCIDENT LOCK】The built-in G-Sensor technology automatically saves footage in emergency events for you. Should any collision or crash happen, 70mai Dash Cam A500S auto locks the real-time video segments and prevents them from being deleted or overwritten