Usage Tips:1.19 functions, accurate riding: this bicycle Odometer can measure speed, distance, riding time, calorie counter, etc. very well. It helps to adjust the speed to complete the cycling plan on time, and adjusting the cycling rhythm has a better exercise effect. Our bicycle speedometer is equipped with a powerful intelligent movement and powerful magnet, which is more stable and interference free, making the data more accurate. 2.Large screen with backlight and easy to read: Our bicycle speedometer has a 2.2 inch screen and 3 rows of data display. The bicycle computer has large and clear numbers, making it easy to read data from various angles. The first line displays the current speed, the second line displays the temperature, and the third line can be set to display other data. Backlight is easy to turn on/off, making cycling data clear at a glance Grade 3.Level 5 waterproof: As a rider, it is impossible to completely avoid adverse weather conditions during mid to long distance cycling. So the most important performance of bicycle computers is waterproofing. Level 5 waterproofing meets all your needs. In addition, the soft green backlight protects your eyes and can help you easily read data even in the dark. 4. Automatic wake-up: After 3 minutes of no signal input, the bicycle computer screen will enter standby sleep mode. When you press any button or rotate the bicycle wheel, the bicycle Odometer will wake up automatically. The bicycle remains energy-efficient and super convenient, so don't worry about forgetting to turn off the bicycle mileage after each use. Lightweight, waterproof, and make it suitable for most types of bicycles and any season 5. Installation: The package of bicycle Speedometer contains magnetic ring, sensor, bracket and screen. Installing a bicycle computer requires a Phillips screwdriver for magnets. A small car hanging on a spoke; The sensor is installed on the fork, and the screen is installed on the handlebar with a bracket.