GPS Digital Speed Meter Speedometer HUD with MPH Speed Head Up Display for All Cars, USB Cable Plug & Play

【Product Display】: This car head up display only displays one function - the car's driving speed. It does not require any projection film to be pasted on the car glass, you can install it anywhere you need.. 【GPS speedometer】：This gps speedometer collects vehicle speed data via GPS satellites, please wait a few minutes after plugging in to search for satellites. This product connects via USB interface and will not damage the vehicle's circuit board or OBD port, and can be used in most vehicles on the market without worrying about compatibility issues.. 【Easy installation】: This digital speedometer is very easy to install, no buttons, no setup required. the USB cable is plug and play. If your car has a USB port, plug the USB cable into the USB port; if your car does not have a USB port, give it a car adapter.. 【Large font display】：Built-in vibration sensor, when motion is detected in the car it will be switched on and the driving speed will be displayed in large font.. 【AFTER-SALES SERVICE】:This hud takes 10-30 seconds to get GPS signal when you use it for the first time. If you receive a faulty product, you don't need to send it back to Amazon, you can contact us directly by email, we will provide you with better after-sales service.