Features: 1.HD projection head up display can enhance your driving safety by gives you a instrument panel access without looking down. 2.Warning icons display, overspeed alarm, RPM speed alarm, high water temperature alarm, low voltage alarm, engine failure alarm. 3.OBD mode can display information about vehicle speed, water temp, voltage, fuel consumption, RPM speed, single mileage, total mileage, etc. 4.GPS mode shows information about vehicle speed, driving time, satellite time, altitude, number of satellites, driving direction, etc. 5.Universal for vehicles complying with OBD II standards, easy installation, just connect the HUD with Car OBD port by OBD cable. Specification: Item Type: Head Up Display Material: ABS Color: Black Compatible: Suitable for vehicles complying with OBD II standards Instructions: 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. GPS Mode Display Information: Vehicle speed, driving time, satellite time, altitude, number of satellites, driving direction, single mileage, voltage, acceleration test, brake test. Alarm: Overspeed alarm, RPM speed alarm, high water temperature alarm, low voltage alarm, engine failure alarm. Note: Please allow 0?3mm error due to manual measurement. Thanks for your understanding. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.