This heart rate monitor by Myzone has interchangeable wear options
MYZONE - Heart Rate Monitor — OFFICIAL MERCHANDISE
Myzone MZ-Switch Review | Trusted Reviews
Heart rate monitor FAQs: Your MZ-Switch
You wear your Myzone heart rate monitor when you train, but maybe you don't quite understand it all. Here's a quick guide to explain wha... | Instagram
Anytime Fitness - What is MyZone exactly? MyZone is an innovative wearable heart rate based system that uses wireless technology to accurately & conveniently monitor ones physical activity. The technology is used
Common Phenomena When Getting More Fit with MYZONE