HUD Drive: The best head-up display for any car1Head-up display (HUD) for everyday commute to stay focused and connected while driving2Installed on the dashboard at one time, the cables are concealed, and the appearance is the same as the original car, The machine does not damage the car, and use safe.For all models, the connection is a USB interface.Alarm functions Improve driving safety:1. Overspeed alarmAlarm when the vehicle speed reaches the set default value of 150KM/H (30-250 setting).2. Fatigue driving: Reminder after continuous driving exceeds the default value of 4.0 hours(1-8h setting).Display of different functional interfaces:1. Speed+Time+Compass+ Number of GPS satellites+ Decorative atmosp2. Speed+Driving time+ Decorative atmosphere lights3. Driving direction angle speed+ Compass+Altitude4. Speed+Driving distance5. Speed+Compass+ Acceleration time per 100 kilometers+ Decorative6. Speed+Decorative atmosphere lights7. Speed+Compass+Number of GPS satellites8. Simple speedMultiple function display screen:1. It can only display the speed alone without decorative lights, or with decorative lights and a driving compass, etc.2. Automatically turn on and off as the car starts and stops.