- Comprehensive Car Digital Speedometer: This GPS-enabled heads-up display (HUD) not only measures your speed but also provides travel direction indicators and dual alert systems for overspeed and driver fatigue. It delivers audible alerts after 8 hours of driving or if you exceed speed limits, enhancing your safety on the road. - Intelligent Automatic Brightness: With a built-in light sensor, the HUD automatically adjusts its brightness for optimal visibility in all lighting conditions, whether it's day or night. For added convenience, manual adjustments can be made effortlessly. - Advanced Windshield HUD: Transform your vehicle's windshield into a real-time data display. The HUD clearly shows your speed and other essential information without obstructing your view, promoting a safer and more comfortable driving experience. - Universal Compatibility & Easy Setup: This device is compatible with all vehicles that support 5V power and features a simple plug-and-play USB connection. Setup involves allowing the device to acquire satellite signals, indicated by a flashing satellite icon, for precise performance. Use scenarios: 1. Long-distance road trips: Stay alert and informed with real-time speed and fatigue alerts, ensuring a safer journey. 2. Daily commuting: Experience enhanced visibility and reduced distractions, allowing you to focus on the road ahead. 3. Navigating unfamiliar areas: Utilize the travel direction indicators to maintain awareness of your route without taking your eyes off the road. The product is designed for practicality and convenience, making it an essential tool for any driver.