Introducing the ultimate digital speedometer - a must-have for any vehicle! Our GPS-powered speedometer collects speed data independently from your vehicle's engine, so there's no risk of damaging your car's circuit board or OBD port. Suitable for a range of vehicles including trucks, bicycles, golf carts, boats, buses, motorcycles, and more.Featuring a clear display that shows only your vehicle's speed, our easy-to-install heads-up display can be mounted anywhere without the need for any additional projection film on your windshield. With no buttons or settings required, simply plug in the USB cable and you're good to go. If your car has a USB port, plug the cable in, or use a car adapter if it doesn't.Our speedometer comes equipped with a built-in vibration sensor that automatically turns on and displays your speed in large font when it detects movement. If your vehicle remains stationary for more than 3 minutes, it will turn off to conserve energy. And, with just 10-30 seconds required for GPS signal acquisition on first use, you'll be up and running in no time.Experience the convenience and accuracy of our digital speedometer today!