SAHOO 81489 Multi-Functional Wired Bicycle Stopwatch Bike Computer - White (1 x LR44)
Function: 1. Automatic scanning display 2. The total mileage 3. Compared display 4. Speed 5. Single mileage 6. Kilometer and mile setting 7. Max. Speed 8. Wheel circumference setting 9. Average speed 10. Initial data set 11. Time (Automatic on / off) 12. Wheel rotation speed per minute 13. Clock display (24 hours) water resistant design