Features:Multifunction Display: Car headip display, real-time display of time, temperature, altitude, speed, solar charging, etc., to keep abreast of vehicle status.GPS Positioning: Support GPS positioning system, can locate time and set vehicle speed compensation to make the displayed data more accurate.Dual Power: Built-in large-capacity battery, support solar power and USB power supply, integrated large-area solar panel, quick charging, long endurance.High Clear Display: With LCD digital display, large font display, easy to see. Solar panel can intelligently identify the brightness, and it is clear whether it is day or night.Alarm Function: Support overspeed alarm and fatigue driving reminder, the speed and time can be set by yourself to add safety to your driving.Power Saving: Built-in intelligent sensor, the car starts vibrating to brighten the screen, and the screen is automatically shut after parking, saving energy.