1. 19 functions, accurate riding: This bicycle odometer measures speed, distance, riding time, calories burned, and more. It helps adjust speed to meet cycling goals and optimize workout effectiveness. The bike computer features a high-precision sensor and strong magnet for stable, interference-free performance and reliable data accuracy. 2. Large backlit display, easy to read: The bike computer has a 2.2-inch screen with three-line data display. Large, clear digits ensure readability from multiple angles. Line 1 shows current speed, line 2 displays temperature, and line 3 can be customized to show other metrics. The backlight is easily toggled on/off for clear visibility in all lighting conditions. 3. IPX5 waterproof rating: Designed for reliability in varied weather conditions, this bike computer meets the IPX5 waterproof standard—resistant to low-pressure water jets from any direction. The soft green backlight reduces eye strain and enhances readability in low-light environments. 4. Auto wake-up function: After 3 minutes of inactivity, the display enters sleep mode. Pressing any button or rotating the wheel automatically wakes the device. Energy-efficient design eliminates the need to manually power off after each ride. Lightweight and weather-resistant, it’s compatible with most bicycle types and suitable for year-round use. 5. Easy installation: The package includes a magnetic ring, sensor, mounting bracket, and display unit. Installation requires a Phillips screwdriver. The magnet attaches to a spoke, the sensor mounts to the fork, and the display secures to the handlebar.