Universal Head-Up Display LED Digital GPS Speedometer with Overspeed and Fatigue Driving Reminder for Motorcycles and Vehicles This head-up display shows real-time speed in MPH or /h, time, and driving direction with a large LED font for clear visibility.It features GPS and BeiDou dual-mode positioning for real-time data synchronization, fast refresh rate, and accurate speed readings.The device includes a function processing chip with dual-core architecture for smooth.It supports customizable overspeed and fatigue driving reminders to promote safer driving habits.An automatic brightness adjustment system adapts the screen to ambient light conditions.The compact design ensures it does not obstruct the driver's view, and USB plug-and-play enables easy, non-invasive installation.Suitable for use in cars, motorcycles, and other vehicles. Product Color: Black Material: ABS + PC Input Voltage: 5V Speed Accuracy: ±0.05 /h Time Accuracy: ±1 second per 24 hours Item Size (LxWxH): Approx.63.79 x 38.39 x 62.15 mm / 2.5 x 1.5 x 2.4 in Item Weight: 52 g / 1.8 oz Package Includes: 1 x Head-Up Display 1 x USB 1 x User Manual