2.1" LCD Display with Mood Light:This mini HUD has a 2.2 inch screen, full HD display with large font and cool ambient light, light color changes according to the speed of car, also can be set with fixed color. Compact design, keep the driver's eyes always on road to avoid the dangerous of lowering head to read the dashboard! Rich Contents:Basic driving data you want to know can be shown on this vehicle head up display, including driving speed, satellite number, driving direction. Freely switch between KMH MPH. Let you know the key informations for your trip. Built in light sensor helps head up display to adjust the brightness according to the environment automatically, backlight visible during the day, soft and no dazzling at night. Plug And Play 2 Installation Methods:The Vehicle Smart HUD Display features a USB plug and play operation. Automatic synchronization of power on and off according to engine ignition. Easy to install, coming with Suction Cup Bracket and Non-slip Mat, 2 installation methods for your choice, you can install on anywhere you want of your car. Security Alert Multi-display Modes:Over Speed alert and fatigue driving alert to ensure driver's safety during long-distance driving. Default time is 8 hours, and default speed is 150KM/H or 150MPH. 6 Display mode interfaces will be well changed as you like according to your habit. One button control, multifunctional display or simple function display can be switched freely. Designed for All Vehicles:Unlike other car head-up displays, HUD is GPS+BeiDou dual-mode chip, powerful performance and compatibility, fast speed refresh with no latency. Compatible for all cars, trucks, motorcycle and bicycle in the market. Ultra-mini design with full of technology, bringing more fun and technology to your driving experience.