The Muse The Brain Sensing Headband in Black is a cutting-edge fitness technology tool designed for both indoor and outdoor activities like running and jogging. This headband uses advanced sensors to accurately track heart rate and provides real-time feedback to help enhance your workout experience. With a sleek and comfortable plastic design, it is suitable for both iOS and Android operating systems, making it accessible to a wide range of users. Powered by batteries with a long battery life of up to 1 day, this headband is a must-have for unisex adults looking to optimize their fitness routine.