The Tune Belt Nike Sensor Case Pouch means that you can use the Nike + iPod system with nearly any running or hiking shoe
- you just need laces! Tune Belts sensor case is not only light weight & washable but it quickly & easily attaches around the shoe lace to hold the Nike + iPod Sport Kit sensor safely & securely. Compatibility. Use to hold Nike + iPod Sensor when Nike + iPod Sport Kit receiver is connected to 6th 5th, 4th, 3rd or 2nd generation nano. Also, can use when Sensor communicates with iPhone 3G S, iPhone 4, or 2nd, 3rd or 4th generation iPod touch.