Nike+ sensor logo on running shoe's sole Stock Photo - Alamy
Nike+iPod - Wikipedia
Amazon.com : Nike+ Stand Alone Sensor Kit : Nike Plus : Sports & Outdoors
On the Run With the iPod/Nike Fitness Device - WSJ
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