Features: 1.Dual Mode: Dual mode dual system OBD and GPS, system is more stable and smoother, richer data display and more powerful information function. 2.Compatibility: Fit for all car models, OBD II system communication strictly according to SAE J1939 protocol standard, CAN communication is more stable, can read more than 100 items of car ECU data. 3.4 Alarm: Car HUD with speed alarm, low voltage alarm, water temperature alarm, rpm alarm, greatly enhance your driving safety. 4.8 Display Interface: Simple interface, single speed interface, OBD basic interface, 6 grid, turbo pressure gauge, acceleration test, brake test, full function interface. 5.Easy Installation: Easy to install, come with a high quality OBD II cable and a complete set of accessories, OBD II interface, plug and play. specification:Item Type: Car HUD Material: PC+ABS Color: Black Pattern: OBD OBD Functions: Speed, clock, rpm, water temperature, voltage, fuel consumption, driving time, single mileage, compass, altitude, turbine pressure, acceleration test, brake test, fault clearing GPS Functions: Speed, clock, travel time, number of satellites, altitude, single mileage, compass, turbine pressure, acceleration test, braking test 4 Alarm: Speed alarm, low voltage alarm, water temperature alarm, rpm alarm Fitment: Fit for all car models PackageList:1 x Car HUD1 xOBDIICable1 xDouble Sided Adhesive1 xCrowbar1 x Strap1 x User Manual