QUALITY SERVICE: Our product is CE FCC RoHS certified, ensuring excellent quality. If you have any questions about this product, please feel free to contact us. We will reply within 24 hours to help you solve the problem. PLUG AND PLAY: Easy and convenient installation, plug and play, just install the GPS meter on the dashboard, no tools are needed to install it in 1 minute. It only needs to have a USB port with 5V power supply, and any compatible models can be easily installed. DRIVING SAFETY ALERT: What is the most important thing in driving? As we all know, life safety is the first, speeding and fatigue driving are not allowed, our car GPS speedometer HUD has two important reminders, speeding reminder and fatigue driving reminder, when the speed exceeds your set value, it will emit a ticking sound to remind you in order to reduce the speed; driving time over 4 hours will remind you need a short break, it is a caring safety housekeeper during the journey. NEVER GET LOST: With GPS navigation direction compass, our HUD helps drivers by indicating the direction so that you won't get lost. Equipped with a light sensor that adjusts its brightness according to different light, it can be very clear in bright light, providing a safer day and night driving experience. MULTI-FUNCTIONAL DISPLAY: Equipped with a 5-inch HD LED screen for clearer information display, our HUD offers a range of features including speed KM/H & MPH, clock, compass, travel time, travel distance, number of satellites, acceleration time, altitude, fatigue driving, and speeding alarm. It's packed with technology to bring more safety and fun to your driving. UNIVERSAL COMPATIBILITY: Our GPS+BeiDou dual-mode chip ensures compatibility with all vehicles worldwide, with fast refresh speed and no delay. Display speed MPH, travel time, mileage, time, direction, and more at the same time.