Features: 1.2 Security Alarm: Speed alarm and fatigue driving alarm to ensure your safety in long distance driving, high accuracy and stable. 2.Automatic Brightness Adjustment: Car HUD can adjust brightness according to different light, very clear in bright light and dark night. 3.HD Screen: HUD speedometer is equipped with HD LED screen for clearer information display, bringing more fun to your driving experience. 4.Multifunction: HUD display with speed, clock, single trip time, single distance, driving direction angle, kilometer mile switching, etc. 5.Easy Installation: Easy to install, no complicated operation is required, just plug and play, convenient for using, save your time and energy. Specification: Item Type: Car HUD Material: ABS and metal Voltage: DC5V Function: Speed Clock Driving direction Single distance Single trip time Number of search satellites 100 km accelerator time Driving direction angle Speed alarm Fatigue driving alert Kilometer mile switching Automatic brightness adjustment Fitment: Universal car modification PackageList: 1 x Car HUD 1 x Power Cable 1 x User Manual 1 x Sticker