HUD Head Up Display (Q7) Brand: Excelvan(1 year warranty and friendly customer service) HUD (Head-Up Display) projecting driving data omits drivers lowering head to the dashboard. New high bright screen with multi-color design give you a clear and fine image Just connect to the car cigarette lighter without the trouble of distinguishing OBD II interface, universal installation. Automatically adjusts its brightness to provide clearly visible projections in direct sunlight or at night Displays precise local time and altitude in accordance with the satellite.Displays speed in both number and graphical representation.Alerts you if you exceed the speed limit by setting over-speed buzzing alarm Projects a lot of driving information onto a transparent film on your windshield such as speed, local time, driving direction, mileage, traveling hour, satellite number, altitude, over-speeding alarm