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
Nike+ sensor logo on running shoe's sole Stock Photo - Alamy
Review: Nike Hyperdunk+ Basketball Shoes | WIRED
Amazon.com : Nike+ Stand Alone Sensor Kit : Nike Plus : Sports & Outdoors