Head-up display, ACECAR universal GPS HUD for car, speedometer USB interface, speed, driving direction, overspeed alarm, clear fault code, suitable for all vehicles Features: Product name: head-up display Weight: 0.29 pounds Color: black Product size: 3.39 * 1.46 * 0.63 inches Package size: 4.92 * 3.35 * 1.73 inches Function: vehicle speed / water temperature / voltage / single mileage Alarm: overspeed alarm / water temperature alarm / voltage alarm / fatigue driving reminder / fault alarm The product fits all vehicles Unlike other car head-up displays, this HUD is GPS + Beidou dual-mode chip, so you don't have to worry about compatibility issues and delays. This HUD is compatible with all vehicles worldwide, with fast refresh rate and no delay. Easy display of vehicle speed + driving direction, high-definition display, practical functions, making you drive more comfortably for a long time. Nanotechnology, high-definition projector, eliminates unnecessary reflections and makes the displayed information clearer. It comes with a shading hood to cover the light from the display panel, which will not be dazzling when driving at night. Driving direction - It has a GPS navigation direction compass to help the driver by indicating the direction. Equipped with a light-sensitive element, it can adjust its own brightness according to different lights, and it can be very clear in strong light, providing safer driving during the day and night. Plug and Play, you only need to use the included USB cable to connect the HUD to the car, no professional installation is required. It automatically synchronizes on and off according to the engine's ignition. Quality tips - The working voltage of this speedometer is 5V, and it is forbidden to use a voltage higher than 5V for power supply. FCC RoHS certified, excellent quality. Products included: 1X Head Up Display 1X OBD cable 1X Reflective film 1X Double-sided tape 1X User manual