Car Digital GPS Speedometer HUD Overspeed MPH/KM Fatigue Warning Alarm Car GPS Speedometer HUD Features: - Simple and Safe: Focus on the most important data: speed, speeding alarm, driving direction so you can always keep your eyes on Focus on the road, undisturbed by other instrumentation factors. - GOOD PERFORMANCE: The car GPS speedometer head-up display offers digital speed just like you'd expect from a digital speedometer at a very reasonable price. Car GPS Speedometer Head Up Display has both analog and digital functions, no need to buy a vehicle based on the type of speedometer. .- Simple and easy operation: This car GPS speedometer HUD is powered by the car charger (supplied), plug and play, the car GPS speedometer HUD is powered, no professional installation is required. - Auto Power On/Off: The car GPS speedometer HUD turns on and off as the vehicle starts and shuts down, the car GPS speedometer HUD effectively protects the car battery; keep manual switching mode, it is easier to control the HUD. - Car GPS speedometer head-up display with automatic and manual brightness adjustment modes for glare-free driving. - Car GPS Speedometer HUD is fully compatible with all cars, vehicles and trucks. Car GPS Speedometer HUD Specifications: Type: Car GPS Speedometer HUD Car GPS Speedometer HUD Screen Size: 3.5 inch Car GPS Speedometer HUD Speed Range: 0-400KM Car GPS Speedometer HUD Working Voltage: DC8- 24V Car GPS Speedometer HUD Working Current: 40mA Car GPS Speedometer HUD Compass Accuracy: 1 Car GPS Speedometer HUD 12V Car Charger: 1000mA Car GPS Speedometer HUD Sleep Current: 15mA Car GPS Speedometer HUD Dimensions : 90x54x12 mm Package includes: 1 x Car GPS Speedometer HUD 1 x Car Charger Cable 1 x Reflector Sticker 1 x Anti-Slip Pad 1 x User Manual