CAR HUD comes from the display technology of the fighter aircraft and displays the car dashboard information (eg speed, RPM, water temperature, voltage, trip distance, etc ) on the own anti-glare plexiglass without affecting the driver's line of sight. Keep the Driver's eyes always on the road to avoid the dangerous of lowering down head to read the dashboard. Two modes of operation are available for all models. It adopts a high-grade semi-concealed design and beautiful appearance. Automatic ambient light sensing adjusts the display brightness. Anti-reflective matte paint will not affect your line of sight to make your driving safer. The curved baffle is thicker and the display is clearer and can effectively avoid ghosting. The fanless multi-position passive cooling design is completely noise-free and energy-saving. Specifications: Support two working modes OBD2 mode: Supports display of car ECU information (most vehicles with OBD interface are available, new energy and EV POWER models are not available); GPS mode: Supports dual-star positioning, which can display driving directions, real-time speed, mileage, time and other information (support all models, use USB power). Material: Polycarbonate + ABS material, can be more resistant to high temperature and deformation, anti-UV long-term Yang Guan illumination does not change color. Display: A thick curved optical reflective display with a semi-hidden design, 10 layers of optical coating can effectively correct image distortion and display ghosting problems. Display mode: four dashboard interfaces, two test interfaces (brake test, accelerated test). Display color: Support 8 kinds of interface color modification to help you display important information more prominently. Display brightness: The addition of the light sensor allows the device to automatically adjust the brightness according to the ambient light, without glare at night, and clear display during the day. Cooling system: With copper fins, fanless design, quieter and energy saving. Chip: Using a high-performance dual-core processor for better performance and compatibility, the AI chip can display different colors depending on your driving speed, making your driving safer. Display size: 5.03inch*3.0inch Product size: 5.03inch*4.33inch*3.0inch