Studio : JaxJox Fitness Publisher : JaxJox Fitness Binding : Sports Product Description Workouts are more effective when we put on our JAXJOX heart rate monitor. An adjustable chest strap accurately measures heart rate while we run, jump, spin, dance, and play, so we do our best-every. Single. Time. Once JAXJOX is in place, there's no stopping us. Connect it to the JAXJOX mobile app to see your results and track it over time. 0
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