This bicycle computer with backlight is good companion for your riding,Real time recording for your current/average/maximum speed, riding time, trip distance, ODO meter and other cycling data, perfect cycling partner for biking enthusiasts. Features: Display speed, average speed, max speed, time, distance, temperature, trip time, date, etc. White background, black digital and backlight allow you to read the data clearly at any time and any angle.  Auto power off and auto/manual wake up are all available,  quite convenient to use. Powered by CR2032 battery,longer life and lower power consumption. Easy to install onto the handlebar with cable ties provided. Functions: 1. Speed (SPD): 0~99.9 KM/H ; M/H 2. Average speed (AVS ) : 0~99.9 KM/H ; M/H 3. Max speed (MXS) : 0~99.9 KM/H ; M/H 4. Odometer (ODO) : 0~9999.9 KM; M 5. Speed Comparator 6. KM / M selectable 7. Auto Start / Stop 8. Odometer Save Function 9.Trip Distance (DST) : 0~9999.9 KM; M 10. Trip Time (TM): 9:59:59 11. Clock: 12/24 hours 12.  Auto Scan 13. Auto Power Off 14. Calories 15. Fat Burned 16. °C & °F selectable 17. Highest / Lowest Temperature memory 18. Maintenance program 19. LED Backlight 20. Stopwatch ( SW) 21. Estimated arrival time ( ETA) Specifications: Material: ABS Color: Black Type: Black background + White digital / White background + Black digital ( optional ) Diameter: 62 mm / 2.4 in Weight: 87 g / 3.1 oz Package Size: 135 * 95 * 56 mm / 5.3 * 3.7 * 2.2 in Package Weight: 146 g / 5.1 oz Package List: 1 * Bicycle Computer 1 * Nut 1 * Transmitter 1 * Magnet Screw 4 * Zip Tie 1 * Rubber