Zoom Arch Fit+ [2007]Nike+ was a technology developed by Nike and Apple which gave shoes the ability to speak to an iPod via a sensor underneath the insole. It was the first time you were able to track how fast you were running without having to use more pricey equipment like a Garmin. Real time information about your run performance was relayed through headphones or shown on the iPod, you could also plug the receiver into your Mac to collate data and track performance