1. MultiFunction Bicycle Speedometer This bike 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. 2. Easy Installation and Use It can be easily installed and is suitable for most common tire sizes for accurate stat tracking. Its small size, lightweight, and wired design make it suitable for various types of bicycles. 3. Durable and Waterproof Made of quality materials, this speedometer is durable and waterproof. It can withstand different weather conditions and has longlasting performance. 4. Intelligent Backlight and Low Power Reminder The speedometer features a light control intelligent backlight and a long bright function. It also includes a low power reminder to inform you when to the battery.