To calibrate Nike + iPod for running and walking:
1iPod nano: Choose Nike + iPod > Settings > Sensor > Calibrate.
iPhone 3G S and iPod touch: Choose Nike + iPod > Calibration.
2Choose Run or Walk and enter a distance.
Note: You must enter at least a quarter of a mile for calibration to be successful.
3Choose music to accompany your calibration workout.
4iPod nano: Press the Center button.
iPhone 3G S and iPod touch: Tap Play.
Then run or walk the set distance at a steady, natural pace.
5iPod nano: Press the Menu button and choose Done Calibrating.
iPhone 3G S and Pod touch: Tap End Workout, and then tap Done.
A message lets you know if the calibration was successful. If you want to calibrate for both running and walking, repeat steps
Note: Even after calibrating, the accuracy of the distance measurements may vary depending on gait, running surface, incline, and temperature.
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