Universal Head Up Display OBD2 GPS Mode HUD HD Projection Monitor Car Instrument f26 Item Type: Head Up DisplayMaterial: ABSColor: BlackCompatible: Suitable for vehicles complying with OBD II standardsInstructions:1. Simply connect the head-up display (HUD) with the on-board diagnostic interface (OBD) through the OBD cable, and the head-up display (HUD) will display when the car engine starts.2. Connect the USB cable to the USB interface, it will display when the car engine starts.OBD Mode Function: Vehicle speed, water temperature, voltage, fuel consumption, RPM speed, single mileage, total mileage, driving time, driving direction, number of satellites, altitude, time, intake pressure, oil temperature, air-fuel ratio, turbine pressure, acceleration test, brake test, throttle, engine load, fault detection, clear fault code, entire vehicle data stream reading.