Who remembers the Nike+ iPod Pedometer? Went in your shoe under the insole and connected to your iPod via a separate 30-pin dongle. : r/RunningShoeGeeks
Original Nike+ iPod Wireless Sensor A1193 Apple iPhone 4S 5S Running Shoe Sport | eBay
Replace Battery in Nike+ Sensor for Under $5 : 3 Steps - Instructables
How to split open a Nike+ iPod sensor battery? - YouTube
NEW Nike+ iPod Wireless Sensor A1193 Apple iPhone 4S 5S Shoes Running w/A1191 | eBay
2x Nike Plus A1193 Sensor Shoe Running Apple SportWatch iPhone Fitness 4.c3 for sale online | eBay
Replace Battery in Nike+ Sensor for Under $5 : 3 Steps - Instructables