4K+1080P FRONT AND REAR RECORDING - Kingslim D4 4K dual dash cam can simultaneously record videos in front Ultra HD 4K(3840*2160P) and rear FHD 1080P resolutions, which help clearly capturing license plates and road signs for your daily driving. Front wide angle of 170 degree and rear wide angle of 150 degree 6-layer glass fixed-focus lens, it gives you maximum coverage of the road and greatly enhances night vision, providing sharp and clear images and videos. SMART DASHCAM SUPPORTS APP CONTROL - Easy to connect D4 4K dashcam with KINGSLIM APP via built in WiFi. You can playback/download videos and adjust the settings directly via phone APPWork with Android and iOS devices). Note that exiting the APP interface during the connection process may cause the connection to fail. AUTO RECORD GPS SPEED AND LOCATION - Built-in GPS module, auto records and save your route and driving speed in videos. It is best to turn on the GPS function in an open area in order to receive a better signal