Fitment】Automatic adaptation car , and can apply for cars in line with OBD II or EUOBD (onboard automatic diagnostic system). Plug and play. 【Anti-Glare】Automatic and manual brightness adjustment mode, driving without glare. 【Multi-Control 】Auto power on and off with vehicle started and shutdown, effective of the car battery; while retaining the manual switch mode, and more easy to control HUD. 【Display Rich Content】Speed, engine speed, water temperature, battery voltage, low voltage alarm, high temperature alarm, speed alarm, switching between kilometer and mile, switching between and . 【Clear Display】The use of nanotechnology to eliminate unwanted reflections and can make display information more sharper. 3" screen and high-definition display makes the screen more abundant and easier to read.