Digital HUD Display for Cars with Speedometer & GPS1、Multifunctional: This HUD can not only display the speed of the vehicle in time, but also display the driving direction, single driving time, and single driving mileage through the compass. 2、Timely and Accurate: The speed and compass data come from satellites, which are timely and accurate, especially the direction of the compass is not affected by the magnetic field. 3、Easy to Read: Large screen size display, large and green fonts, 7 colors can be switched at will, reading is easier and more comfortable, protects the driver's eyes, especially suitable for long distance driving. 4、Safe and Reliable: The shell is made of high temperature resistant ABS material, which will not deform at 80℃ for 3 hours. No built in battery, does not explode at high temperature. 5、Applies to All Vehicles: Collecting speed from GPS satellites. Regardless of car engine, HUD is compatible with all vehicles including cars, trucks, pickups, suvs, scooters, trains, motorcycles, bicycles, boats.