Nike + iPod Sport Kit consists of a wireless sensor and receiver, the the Nike + iPod Sport Kit works exclusively with your Nike+ shoes and iPod nano to give you real-time feedback during workouts. It also lets you track your performance on your Mac or PC.
Features:
Compatibility: iPod nano 1G, 2G, 3G
Transforms your iPod nano into a personal workout coach--nano can provide real-time, spoken feedback that alerts you to workout milestones
Lets your iPod nano track your running time, distance, pace, and calories burned
Sync your iPod nano to transfer your workout data to iTunes and nikeplus.com for your performance history and more
Kit includes wireless sensor for Nike+ shoes and wireless receiver for iPod nano