Your Mightier kit will include the heart rate monitor, a charging cord, and two different sized bands.
To put on your heart rate monitor, first choose the best size band and weave it through the sides of the monitor. Use the Velcro straps to loosen or tighten the band so it is positioned snugly over the forearm or bicep. If you shake your arm and the monitor shifts position, it is not tight enough. Follow along in the video below: