Smart 3.5” Double Screen Car OBD2+GPS Gauge Head-Up Digital Display Speedometer

Smart 3.5” Double Screen Car OBD2+GPS Gauge Head-Up Digital Display Speedometer. 3.5” Double Screen Smart Car OBD2+GPS Gauge HUD Head-Up Digital Display Speedometer Turbo RPM Alarm. This product is developed for high-speed vehicles. When driving at high speed, especially at night, in order to avoid the driver looking down at the instrument display or audio …