Automatically adapt to vehicle models, plug and play for models that comply with OBD II or EUOBD (automatic on-board diagnostic system) Car speed, engine speed, water temperature (voltage/throttle position/ignition advance angle/acceleration time per 100 kilometers), instant fuel consumption, average fuel consumption, cruising range, low fuel prompt, rest prompt, engine failure, all displayed simultaneously Normal display mode, high-speed display mode and automatic display mode can be by yourself. Free switching between kilometers and miles, greatly convenient for British car instruments 5.5-inch display area, more conducive to data reading 1. 5.5-inch screen display 2. Reminder with gear, manually block the helper 3. 12 Big Function Show, 6 major alarm functions 4. Switch on a of interfaces to meet different needs 5. Simple installation, convenient and fast Automatically switch on and off, start and shut down with the car, effectively protecting the car battery; while retaining the manual on and off , it is more conducive to controlling the HUD Overspeed single-stage and four-stage alarm prompt modes are optional, which is more conducive to driving safety. The speed alarm prompts, which is helpful for timely shifting to achieve fuel saving, and is also of special significance to novices. Automatic and manual brightness adjustment modes, no when driving Installation and preparation before use: Understand the brand of your car model. When purchasing a HUD, you need to choose a model that meets the OBD II (or EU OBD) standard for normal use. Find the vehicle's 16-pin diagnostic socket and connect it with the OBDII cable. Use the included anti- mat to place it on a flatter location in front, and the HUD host can be placed on it and the position can be adjusted at any time. Colour:Black Material:Plastic Package Contents: 1 * display 1 * non- pad 1 * 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.