Features 1. The shell is made of cast aluminum and transparent board, and it is installed in an inverted style, which has good rainproof effect; 2. The exterior of the screen adopts a bright surface spraying process, which can be well matched with the car paint; 3. There is a hole at the bottom of the screen for installation with the roof bracket for easy installation; 4. Using DC to DC wide voltage 9 to 36 volt power supply, which can be used by almost all cars; 5. The screen body comes with a delayed start-up function, which does not affect the start of the car; 6. Accurate and efficient with Global GPS fixed-point placement; 7. Wireless control with mobile phone and pad, and the operation interface is simple and practical; 8. Real-time monitoring of the screen; 9. Full color cloud sending Android system architecture, Full Netcom 4G communication; 10. Ali Cloud in-vehicle TAXI_HUB dedicated platform service escorts you in-vehicle interconnection; 11. Standard WiFi module, support platform hotspot Internet access, car hotspot Internet access； 12. Support third-party APP, platform, microservice docking, safe, efficient and reliable； 13. Traffic trajectory, mileage, advertising log statistics, graphical and intuitive.