Features:1.Plug and play. HUD can auto adapt to vehicle type which in line with OBDII or EUOBD(On-Board Diagnostic System).2.Comprehensive display. HUD can display many parameters at the same time as follows, vehicle speed, engine speed, water temperature (voltage, throttle valve position, ignition advance angle, time of 100 km acceleration),fuel consumption, mileage, low fuel tips, engine failure.3.Information display mode. Driver can chose normal display mode, high-speed display mode and automatic display mode.4.Free switch. Km and mile can be switched freely to meet the need of inch auto meter.5.Suitable size. The display area is 5.5 inches which is very clear for driver to read data.6.Automatic power on and off. Starting with the vehicle starting, stopping with the vehicle stopping to protect the vehicles battery. Moreover, we preserve the hand switch function to control the HUD.7.Flexible alarm mode. HUD can offer single-stage and four-stage overspeed alarm modes to choose to make driving safer.8.Engine speed alarm. It contributes to shift gear in time to save fuel also has significance to new driver.9.Flexible brightness adjustment. The brightness can be adjusted automatically or manually according to the environment.10.Support bluetooth function. Can connect to your phone or computer to show more data.