Feature:1. Automatic adaptation car models, & can apply for cars in line with OBD II or EUOBD.2. Multi-color design makes the screen more abundant & easier to read.3. Automatic & manual brightness adjustment mode, driving without glare.4. Auto power on & off with vehicle started & shutdown, effective protection of the car battery.5. The use of nano-technology to eliminate unwanted reflections & can make display information more sharper. Specification: Color Black Environment Temperature- 40 ~ 80 centigrade degree Barometric Press 86-106 K Pa Relative Humidity 10-95 Environment Voice=60d B Alarm of Sound Level=30d B (A) Work Voltage 9V~16V DC (12V DC/400m A) Note: This product is ONLY compatible with vehicles manufactured after 2003 (using the general OBDprotocol). Package Included:1 X A8 Car HUD Display 1 X OBD2 Connecting Line 1 X Instruction Manual