Windshield HUD display for cars with mileage and overspeed alarm 1、Wide Application: This HUD is compatible with all vehicles around the world, with fast speed refresh and no latency with dual mode chip. 2、Function: The product avoids the danger of drivers looking down at the dashboard, ensures safety driving, and helps drivers to keep the best concentration on the road. 3、HD Display: This HUD gauge is equipped with a high definition LED screen, clearer information, ultra mini design and versatility to make your driving experience more enjoyable. 4、Attention Please: This product is only suitable for use at 5V DC, it is forbidden to use at power voltage higher than 5V, please check your car power supply before purchasing. 5、Plug and Play: With a plug and play design you can install the unit near the dashboard. It is powered via the included cigarette lighter USB cable. Automatic power on and off according to engine ignition.