Geyiren A5 HUD 3.5 inch Car Head Up Display with GPS System, Two Mode Display, Light Sensors, KM/h MPH Speed, Compass, Speed Alarm(Black)

About HUD HUD short for Head Up Display. It displays driving datas on the front windshield such as speed on the car front window glass; Avoiding drivers unsafety because of watching the instrument while driving. Drivers can read the driving information instantly, and can always keep the best state on the way with HUD. Features 1. Available for any car, easy to install, plug and play. 2. Two mode display: Reflect on windshield or directly see on the sit up HUD screen. 3. Screen 3.5 inch HD display. 4. Multi-color design makes the screen more abundant and easier to read. 5. Nano-technology to eliminate double reflections, more clear. 6. Rich Contents: Speed, compass, speed alarm, free switch between km and miles. 7. Auto power on/off: HUD start and off with vehicle started and shutdown, effective protection of the car battery; Retaining the manual switch mode, more easy to control HUD. 8. Automatic and manual brightness adjustment mode,driving without glare. 9. Speed range: 0-400KM. 10. Satellite positioning time: Cold start: 30s, hot start: 1s.