Polar POLAR WEARLINK + TRANSMITTER NIKE+

Now, why would Nike agree to partner with Polar in marketing this Polar WearLink + Transmitter Nike+? Obviously, it's a brilliant device. Other than it accurately picks up and transmits heart signals for viewing, the sensor keeps you in sync with your natural rhythms. It is waterproof so you can use it during swimming, snaps to strap for easy power on and off, compatible with many Nike+ and iPod digital devices, and it has an adjustable stretch strap for a comfortable fit. See what I mean?