Large compact LED display with real-time speed readout. This GPS speedometer shows driving speed in real time with a large high-definition display, using an LED uppercase font and automatic brightness adjustment for clear visibility in all light conditions. Real-time speed monitoring with GPS and Beidou dual-system positioning. Provides stable signal and fast speed updates with no delay, so you can rely on real-time speed information while driving. Easy installation, plug-and-play. Uses USB plug-and-play operation; connect the car and HUD with the included cable. Comes with non-slip pads for quick, tool-free mounting in any position inside the vehicle. Compact appearance and clear screen. Small and exquisite form factor with a simple screen and a large LED speed readout. Easy to install and designed not to block the driver’s line of sight, helping to enhance driving safety. Use scenarios - Day or night driving: automatic brightness keeps the speed visible without glare in varying lighting. - Fleet or taxi use: quick retrofitting via USB with non-slip pads for flexible placement in any convenient location. - everyday driving: real-time speed display without delay for better speed awareness during cruising or highway trips.