The adjustable, elastic strap on the Flex Tech Digital 2.4 has a digital transmission that eliminates cross-talk and interference, allowing you to concentrate on your training and your accelerated heart rate.
- Cancels out cross-talk
- Eliminates interference
Adjustable strap fits most body types
- Makes cleaning easy
ANT+™ technology wirelessly syncs with compatible watches
- M229, M536, M843, M844
Owner replaceable battery