The BodyTrends' Full Function Pedometer is easy to set and use. It is ideal for walkers, hikers, and joggers. The large electronic display makes it easy to read as you exercise. Features: One to six (1 - 6) foot stride adjustment range, lightweight clamshell design prevents accidental resets, tuned pendulum movement, automatic start/stop timer records time only while in motion, records from .01 to 99.999 miles on large electronic digital display, calculates average speed, to 20.45 mph, calculates average steps per minute, to 225 spm, counts number of steps up to 99,999, calculates calories burned from a combination of stride length, body weight and average speed, to 9,999 calories, and a tough belt clip.