- Multifunctional wireless bicycle data recorder that records average speed, maximum speed, current speed, riding time, odometer, clock, distance, scanning and maintenance warnings. - Curved, square housing with fast responsive buttons and precise mode displays, making it easy to retrieve all bicycle data from this device. - When you ride, the internal motion sensor automatically wakes the unit. If it is not operated for a few minutes, it switches to sleep mode to save battery power. - A green backlight is available and easy to install: press any button at night between 18:00 and 6:00, and the green backlight will automatically turn on for 6 seconds, so that the data can be read clearly even at night. - Use scenarios: - Daily commute: monitor average speed, current speed, riding time, distance, and odometer, while keeping an eye on maintenance warnings. - Training ride: track current and average speed, riding time, and distance to measure progress. - Night riding: read data clearly with the green backlight during low light conditions.