ANT+/Bluetooth Heart rate strap
Bontrager Gamin compatible heart rate strap. works with all ANT+ products.New and improved This heart rate monitor has a soft fabric strap and is more comfortable than ever before. Plus, it's optimized for use in congested areas like gym classes and starting lines. Also it's cheaper than the Garmin one.
Simultaneously transmits ANT+ and Bluetooth smart heart rate data = better than the garmin one...