http://www.heartratewatchcompany.com/Suunto-t3d-running-watch-p/suunto-t3d-running.htm
A Suunto t3d heart rate monitor watch brings you disruption-free ANT transmission that will assist you to securely match your comfort belt and some other products, such as foot pods, Geographical Positioning pods and biking devices utilizing your monitor providing you with the best in protected transmission.