Multifunctional: The bike computer has various functions to measure speed, distance, riding time, calorie counter, language, user data recording, stopwatch, odometer, clock, temperature and more. The bike computer meets all the serious needs of cyclists or fitness enthusiasts. Automatic On/Off and Three-color Backlight: The LCD bike computer has three backlight colors: Green/Blue/Red, so you can easily read your statistics at any time. If no signal is input after 5 minutes, the screen will automatically turn off to save battery. When you move or press a button, the bike computer will turn on automatically. The waterproof design of the bike computer makes it more durable. The contour of the bike computer is simple and cool, which has more to do with the waterproof design, it will always be fashionable and new. Wipe dry immediately after use. The wireless bike computer has an external mount and a handlebar mount. It helps save handlebar space for other devices. With the quick release, you can easily mount and dismount the bike speedometer. Suitable for all bikes: The bike speedometer is suitable for all bikes. It is not limited to your wheel size, but follow the instructions for installation. The distance between the sensor and the wireless bike computer must not exceed 60 cm, the sensor and the magnet must not be more than 3 mm, otherwise it will not work. Product Information Material: Plastic, PVC, ABS