Note: To connect car play for the first time, you need to connect to bluetooth, and then turn on the WiFi of the mobile phone, look for the hotspot as "TF761-60501-CCC", password: 12345678, after the WiFi and bluetooth are connected at the same time, the car play can be officially started GPS Navigation When Carplay or Android auto is connected , thebuilt-in navigation software of the phone can be launched for navigation Dual Lens Recording Front camera 2K ultra high definition of 2560 " 1440P , capturing license plates,road signs,and other critical details on the road Equipped with 1080P rear recording camera , you can record the front and rear cameras at the same time , and view the pictures of both cameras onthe mirror at the same time Four display screen modes 1. After connecting Carplay or Android Auto, the APP is displayed in full screen, 2. After connecting Carplay or Android Auto, APP + camera, 3. Display two cameras at the same time, 1:1 display, 4. Full screen display front/rear camera. Download-app viewing video You can control the DVR by connected mobile phone via WiFi, like recording video, the file recorded video from the overwriting, taking photo, playback preview, parameter settings, etc.