Features:
-HUD (Head-Up Display) projects driving data without requiring drivers to look away from their usual viewpoints
-HUD automatically adjusts its brightness level, so its projections are clearly visible in direct sunlight or at night.
-Alerts you if you exceed the speed limit by setting Over-speed buzzing alarm
-Projects a lot of driving information onto a transparent film on your windshield such as speed data, time, over speed alarm, compass, altitude
-5.5 inch LCD display, portable and easy for drivers to read data
-New high brightness screen, bright colors, image is clear and fine
-Detect all the important driving information via the OBD II system
Link is here :http://www.ebay.com/itm/5-5-OBD-II-A8-HUD-Head-Up-Display-Projector-Speeding-Warning-Fuel-Speedometers-/221846078048