Shopping in the mall， you can find it.Features:1. Automatic adaptation car models， and can apply for cars in line with OBD II or EUOBD (onboard automatic diagnostic system).Plug and Play.2. 3" screen and high-definition display3. Multi-color design makes the screen more abundant and easier to read4. The use of nano-technology to eliminate unwanted reflections and can make display information more sharper.5. Display rich content: speed， engine speed， water temperature， battery voltage， fuel consumption，low voltage alarm， high temperature alarm， speed alarm，free switching between kilometer and mile，free switching between → and 쭴.6. Auto power on and off with vehicle started and shutdown， effective protection of the car battery; while retaining the manual switch mode， and more easy to control HUD.7. Automatic and manual brightness adjustment mode， driving without glare.HUD Button function:1. OBDII interface， to contact the vehicle OBD interface.2. Button for power on and off3.Wave button: Up button (turning the button to upside)，OK button(pressing the button vertically)，Down button (turning the button to downside) HUD display information:1. Light sensors: brightness can be changed with the change of the outside brightness.2. Rotation speed: indicates the rotating status of the engine， 1 means 1000/min3. Buzzer mark4.Fuel consumption mark5.Fuel consumption: instantaneous fuel consumption and average fuel consumption6.Fuel consumption unit: L/H7.Fuel consumption unit: L/100km8.Alarm icon: water temperature alarm， battery voltage alarm and over speed alarm.9.Unit mark: →-degree centigrade， 쭴 -Fahrenheit， V -voltage， MPH-Mile per hour， KM/H-kilometer per hour10.Multi-function display: speed， voltage， water temperature.11.Rotation speed: indicates the rotating status of the engine and the scale measured represents the speed reachedSpecifications:HUD Host Color: Gold & blackEnvironment temperature: -40▲C―+80▲CBarometric press: 86―106 KPaRelative humidity: 10%―95%Environment voice: <=60 dB(A)Alarm of sound level:> =30dB(A)Work voltage: 9V~16V DC(12V DC/400mA)HUD Host Size: 9*5.4*1.2(cm)Net weight: 40gPackage includes:1 * HUD Host1 * OBD 2 Interface1 * Anti-slip Mat1 * Reflective FilmYour satisfaction is our greatest affirmation.