This Eight function Treklinq Pedometer tells the number of miles, kilometers or yards traveled, speed of travel (MPH or Km/Hr), time elapsed, calories burned, number of steps taken and time of day. "Total" button gives cumulative data for the first five functions. "Scan" button shows rolling display of all functions. "Yards" mode is great for golfers! "Automatic Shut Off" preserves battery life. Includes battery plus extra battery. Rugged ABS cover protects instrument.