One full battery charge of the Endurance Peak suffices for 28 hours of wireless operation. Thanks to a quick-charge function, ten minutes of charging will power the earbuds for another hour. As soon as the user starts wearing the earbuds, they automatically turn on; when removed, they are turned off. With a flexible hook placed around the ears, they provide a very secure fit during a workout. In addition, they are resistant to water and sweat. The earbuds are operated by directly touching the earpiece.