physiological sensors incorporated into sports headwear for the purpose of monitoring heart rate, blood pressure, pulse, and other bodily functions in the nature of oxygen saturation, heart rate, body temperature and blood pressure, for fitness purposes

physiological sensors incorporated into sports headwear for the purpose of monitoring heart rate, blood pressure, pulse, and other bodily functions

physiological sensors incorporated into sports headwear for the purpose of monitoring heart rate, blood pressure, pulse, and other bodily functions