Digital Speedometer with Over Speed Alarm for All Vehicle1、Focus on Driving: HUD speedometer displays both the important mph and direction of travel. It keeps you focused on the road and avoids the dangerous manoeuvre of looking down at the gauge to ensure safe driving. 2、Multifunction: Equipped with a HD LED large display screen, the HUD shows multiple functions including decorative lights, speed KM/H and MPH, time, compass, calendar, acceleration time, driving Angle, driving distance, acceleration time, altitude, fatigue driving, speeding alarm, etc 3、Compass and Light Sensor: Built in navigational direction compass, which can help the driver to indicate the direction. Equipped with a light sensor that adjusts the brightness according to different light, providing a safer day and night driving experience. 4、Two Mounting Options: Comes with an adjustable suction cup mount that allows the HUD to be placed on the dashboard or attached to the windscreen for easy handling and installation, and a detachable mount that supports 360° rotation to adjust the viewing angle and height. 5、Plug and Play: Car hud only needs to have a USB port with a 5V power supply, and any compatible model can be easily installed. With 6 display colors, you can switch to your favorite colors and interface.