1. 27 Functions This bicycle speedometer offers up to 27 functions including auto sleep/wake, current speed, max speed, average speed, total distance, trip distance, riding time, stopwatch, calorie consumption, temperature, and clock. It provides a comprehensive set of metrics to monitor performance and ride data for cyclists. 2. Easy Installation and Use Installing this speedometer is quick and easy, taking only a few minutes. The wired design and lightweight construction make it compatible with most bicycle types. It is also customizable for accurate stats tracking, supporting various tire sizes. 3. Waterproof and Durable Made of high-quality materials, this speedometer is built to last. Its ABS construction ensures durability and its waterproof feature allows for use in different weather conditions. 4. Clear Display and Intelligent Backlight The large LCD screen provides clear visibility, and the intelligent backlight ensures easy reading in low-light conditions. The backlight includes a long bright function, enhancing visibility during night rides. 5. Practical Use Scenarios - Daily commuting: track current speed, distance, riding time, and energy data across different weather conditions; waterproof design helps in rain. - Training rides: use stopwatch, riding time, current/max/average speed, total distance, calories, and temperature to monitor progress. - Long-distance tours: reliable stats across varying tire sizes and bike setups, maintaining accurate measurements on diverse routes.