What Our Gearhead(R) Experts Are Saying: "This heart rate monitor is a must-have for serious athletes. It's lightweight, easy to use, and the CR2032 battery lasts for over 600 hours. I love the seamless connectivity with Bluetooth and ANT+ devices-perfect for cycling and running."Tracking our heart rate should be effortless, and this sensor makes it just that. Designed for seamless Bluetooth and ANT+ connectivity, it delivers real-time, accurate data without unnecessary bulk. Whether we're pushing through an intense cycling session or logging miles on the road, this lightweight monitor stays comfortably in place while providing key performance insights. With a user-replaceable CR2032 battery that lasts up to 600 hours, we can focus on training instead of worrying about power. The IPX7 water resistance ensures reliable tracking through sweat and unexpected downpours, making it the ultimate companion for endurance athletes.