MZ-Switch is the world’s first heart rate monitor that comes with three straps so you can wear on your chest, arm or wrist. Track your real time heart rate and effort to see your data on screen and move through the zones to earn MEPs (Myzone Effort Points). Wearable three ways, simply switch between the chest belt, wrist strap and arm band, depending on your choice of physical activity. It’s time to switch things up.