Polar WearLink+ transmitter Nike+ picks up your heartâ€™s signals and transfers that data into the Nike+ system. The soft textile chest strap seamlessly adapts to your body shape, bringing full freedom of movement to your training. With its hook mechanism, transmitter is just as quick to put on as it is to take off.
Provides heart rate information to nikeplus.com web service with compatible Nike+ devices
Uses coded 5 kHz transmission, ensuring that your Polar training computer finds your heart rate signal
Includes a soft and comfortable hand washable textile chest strap
User replaceable battery