COOSPO Smart Armband Heart Rate Monitor I Know when to stopTrain smarter, not just harder. The COOSPO Smart Armband Heart Rate Monitor gives you real time, accurate heart rate data right on your arm so you always know exactly how hard your body is working and, just as importantly, when to pull back. Whether you are a casual jogger, a serious cyclist, or a dedicated gym goer, this armband helps you stay in the right training zone and protect your body every step of the way. Key Benefits Know exactly when to