Nike + iPod Sport KitPick your mix and motivate your run with the Nike + iPodŽ Sport Kit. Nike+ lets you listen to tunes while you track your progress on an iPodŽ nano. Simply slip the Nike+ sensor into your Nike+ Ready shoe and head out. The Nike+ sensor slips unobtrusively into a pocket under the sockliner. Waterproof and virtually unbreakable. The iPodŽ nano tracks your progress, providing feedback on distance, time, pace and calories burned directly through the headphones. After your run, a performance summary appears on the nano screen and can be heard through the headphones. iPodŽ not included.