Features： 1、Front 4K Rear 1080P: Dual dash cam with 4K front camera and 1080P rear camera, 4K front camera can be switched to 2.5K and 1080P at will, while 135° front and 100° rear wide angle greatly reduces the rear field of view blind spot. 2、Mobile App Control: Simply connect the car camera to your smartphone app via WIFI, you can use for Viidure app to view, play and manage the car recorder for IOS or for Android device. You can also download and edit videos in the app and share them with others at any time. 3、G SENSOR Emergency Recording: The car camera supports loop recording, new video overwrites old video. When G SENSOR detects a collision, G SENSOR will lock the accident video urgently. 4、Parking Surveillance and Timed Recording: Dashcam support 24 hour parking mode, when a collision is detected, G SENSOR is triggered to take a picture of the collision and lock the video; Time lapse video recording takes pictures in less than a second without draining your battery. Hardwire kit required for parking monitoring. 5、Superior Night Vision: 1080P car camera has superb night vision, HDR technology balances the light, manually adjusts the camera exposure, and shoots higher quality images with the help of a large F1.8 aperture and a 6 glass lens. 6、Type C Charging Interface: Compared with the traditional mini USB interface, our car recorder's type C interface does not need to check the insertion direction, with improved power supply, faster charging speed and better heat resistance. Specification： Item Type: 4K WIFI Dash Cam Processor: for Yizhi 220 DDR: 1GB DDR Flash: 8MB Image Sensor: Front: 04B10 Rear: 505J Front Lens: Aperture: 2.0 Angle: 135 Rear Lens: AHD1080P Angle: 100 Maximum Video Resolution: Front: 3840x2160 Rear: 1920x1080 Maximum Photo Resolution: Front: 16M 4608x3456 Video Encoding Format: H.264 Effective Pixels: 5 million pixels Photo Format: JPEG Collision Sensor: Three axis accelerometer Recording Mode: Seamless Loop Recording Storage: Small Memory Card (Class 10 or above, maximum support 128G) (Memory Card not included) Startup Time: 5S Operating Current: 1000mA (5V) Static Current: Below 100uA Storage Temperature(°C): (-25°C-70°C) Operating Temperature(°C): (-20°C-60°C) Operating Humidity(℃): 15%-60%RH WIFI: Built in 2.4G WiFi module APP: for Viidure USB Interface: TYPE C Package List： 1 x 4K WIFI Dash Cam 1 x?Backup Camera 1 x Car Charger 1 x Sticker 2 x Screws 1 x User Manual