Description: Head-up display: HUD Display. It is to display the driving data on the front windshield of the car, such as vehicle speed, speed, water temperature, voltage, single-segment driving distance, etc. Driving: Avoid the driver's viewing of the instrument during driving and affect the safety. The HUD can instantly read the driving information under the condition that the large field of view does not , so that the driver can always maintain the best driving state Over-speed Alarm: It will automatically alarm if overspeed, so it can save you from looking down the speedometer and drive safely.You can freely set this value. if you settled the over-speed value, once over value, it will give a warning. Adjustable Brightness and Angle: The brightness can automatically adjust by environment. Hud can automatically adjust the brightness according to the environment, you can also manually to adjust the brightness. The HUD setting angle also can be adjustable. Universal: 360-degree speed measurement without blind spots, timely warning at any angle. Auto adjust brightness through sensor for day night driving. Easy to install, no professional installation is required. suitable for all cars trucks use GPS or for BeiDo signal guided calculation. Specification: Material: ABS plastic Multi function : speed,engine RPM,water temperature,voltage,driving distance Fatigue driving , Engine Error Water temperature icon ,voltage icon Switch Speed unit: KM/H=kilometer/hour, MPH=Mile/hour. Alarms: over-speed alarm, high water temperature alarm, low voltage alarm, fault code alarm, fatigue driving alarm. Size Chart: 95x62x49mm/37.40x24.41x19.29inch Package Includes: 1 Piece HUD Display Projector 1 Piece OBD cable 1 Piece User manual 1 Piece Anti skid pad 1 Piece cleaning cloth