1Automatic adaptation car models, and can apply for cars in line with OBD II or EUOBD (on board automatic diagnostic system). Plug and Play 2The use of nano-technology to eliminate unwanted reflections and can make display information more sharper 3New function: driving mileage measurement 4Auto power on and off with vehicle started and shutdown, effective protection of the car battery, while retaining the manual switch mode, and more beneficial to control HUD 5Automatic and manual brightness adjustment mode, driving without glare Description:This is a smart display to help you read a variety of vehicle driving data without lowering you head, and you can see the data projected on the windshield. The HUD have a rich contents to display, such asspeed, engine speed, water temperature, battery voltage, instantaneous fuel consumption, mileage measurement and so on. And these data are displayed in a multi-color 5.5'' screen, and finally projected to the screen. With the fitment of automatic adaptation car models, the HOD can apply for cars in line with OBD II or EUOBD, which is easy to install.Such a convenient high tech equipment Would you like to bring one home?Features:1. Automatic adaptation car models, and can apply for cars in line with OBD II or EUOBD (on board automatic diagnostic system). Plug and Play.2. 5.5'' large screen and high-definition display.3. Multi-color design makes the screen more abundant and easier to read.4. The use of nano-technology to eliminate unwanted reflections and can make display information more sharper.5. New function: driving mileage measurement.6. Display rich content: speed, engine speed, water temperature, battery voltage, instantaneous fuel consumption, average fuel consumption, mileage measurement, shift reminding, fatigue driving reminding, low voltage alarm, high temperature alarm, speed alarm, engine fault alarm, fault code elimination, free switching between kilometer and mile.7. Auto power on and off with vehicle started and shutdown, effective protection of the car battery, while retaining the manual switch mode, and more beneficial to control HUD.8. Automatic and manual brightness adjustment mode, driving without glare.Button function1. OBDII interface, to contact the vehicle OBD interface. 2. Button for power on and off. 3. Wave button: Up button(turning the button to upside), OK button(pressing the button vertically), Down button(turning the button to downside).Specifications:Product name: A8 HUD HUD color: Black Function: 13Environment temperature- 40~+80Barometric press:86-106KPaRelative humidity:10%-95%Environment voice:=30dB(A)Work voltage:9V~16Vdc(12Vdc/400mA)Size of product:12.5 x 7.5 x 1.5cm/5'' x 3'' x 0.6''Package Weight: Approx. 280gPackage Included:1 x A8Display 1 x Reflective Film 1 x OBD Cable 1 x Anti-skid Pad 1 x English User ManualNote:1.Easy to install with user manual, but professional installation is highly recommended OBD2 model can work for OBD2 gasoline vehicles produced after 2004 in USA, and OBD2 gasoline vehicles produced after 2008 in other countries.