B3 Introduction: The B3 car -up display is a car-mounted OBD interface for models after 2008. The curved shell can block sunlight, and the screen adopts a fresh blue and pink color scheme, making it a very special novelty. Technology processing chip: Digital GPS speedometer HUD built-in chip has super performance and compatibility, dual running memory, dual-core processor, ensuring high-speed and smooth operation, providing data assistance for your car travel life, effectively reducing data delay problems, and real-time tracking Driving speed Product functions: OBD instrument displays speed, clock, voltage, water temperature, rotational speed, fuel consumption, driving time, driving distance, overspeed alarm, rotational speed alarm, water temperature alarm, voltage alarm, and fatigue driving alarm. Product compatibility: The OBD mode of this product is only suitable for most gasoline vehicles after 2008. OBD mode directly reads original vehicle data. Multi-display: B3 digital speedometer with ambient light, 8 displays can be easily switched, you can choose the functions you want to be displayed on the display. color: Black material: plastic Package Contents: 1 x Car HUD 1 x obd cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.