Q7 5.5 inch Car GPS HUD Vehicle-mounted Head Up Display Security System, Support Speed & Real Time & Altitude & Over Speed Alarm & Satellite Number, etc. About the product 1. This product is for drivers' safety, especially in high-speed driving at night. 2. HUD can keep driver eyes on the road and can decrease car accident. 3. HUD can project the important information (such as speed) onto the windshield, it can help inexperienced novice to control their speed and to avoid speeding violation in the speed limit road. 4. More importantly, it enables the driver instantly read the number in great vision and always make drivers eyes on the road in clear mind. Main Features 1. Apply to all cars in the world, plug and play. 2. 5.5 inch screen and high-definition display 3. Two-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. Display information: vehicle speed, driving direction, driving time, driving distance, real time, satellite number, altitude, speed alarm, free switching between kilometer and mile 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.