Features: 1.By observing the data on the front window glass of the car to ensure the safety of the driver, and to help the driver maintain the best condition during driving. Multiple operation interface modes and colors can be switched freely, bringing you more fun and a sense of technology. 2.The OBD function can display speed, rotation speed, water temperature, voltage, fuel consumption, single driving distance, single driving time, 100km acceleration time, altitude, driving direction and clearing faults. 3.It has alarm functions, including overspeed alarm, speed alarm, fatigue driving reminder, voltage alarm, and water temperature alarm. Safty driving, keep your eyes ahead, no need to down your head to see dashboard while driving. 4.High?definition display and practical functions make you more comfortable driving for a long time. Plug and play, all cars equipped with OBD2/USB interface can be used. 5.GPS function, for speed, altitude, time, single trip mileage, single trip time, voltage, number of satellites, altitude, driving direction. Specification: Item Type: Head Up Display Material: ABS Color: Black Fitment: Fit 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, and it will be displayed when the car engine starts. OBD Function: Speed, rotation speed, water temperature, voltage, fuel consumption, single mileage, single travel time, 100 kilometers acceleration time, altitude, driving direction, clear the fault. Alarm Function: Overspeed alarm, speed alarm, fatigue driving reminder, voltage alarm, water temperature alarm. GPS Function: Speed, altitude, time, single trip mileage, single trip time, voltage, number of satellites, altitude, and direction of travel. Note: 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.