Car HUD Car Head-up Display Digital Speedometer Display Driving Mileage, Compass Angle, Overspeed Alarm and Fatigue Driving Alarm

Great Compatibility: This HUD is + Beido dual-mode chip. It is compatible with all vehicles around the world. The refresh rate is 10 frames per second, and the speed of the car changes smoothly and continuously. Display Function: This HUD can diplay speed, driving mileage, , compass angle and satellite icon. Two Alarm functions: It supports overspeed alarm and fatigue driving alarm. The over speed alarm setting is 30-250KMH. HUD will alarm when the vehicle speed reach to the setting v