Multifunction Waterproof Wireless Bicycle Stopwatch Odometer Speedometer Bike Cyclometers Cycle Computer Cyclocomputer Easy to install and weather-resistant Affordable and versatile bike computer Current speed, average speed, max speed, miles and kilometers per hour, Elapsed Time, "+" "-" comparator, Setting type circumference , Odometer, trip distance, Auto Wake Up, 12- and 24-hour clock, and auto on/off