These all-in-one sports headphones are all you'll ever need to listen to great tunes while working out. Featuring IPX7 waterproofing sweat will never be an issue again. Looking to do an ultra marathon? No problem, with seven hours of listening time, you'll have music the whole way. Occasionally take an important phone call while on the spin bike? These headphones will have you covered, with built-in hands-free talking. With HD sound quality, what more could you want from a pair of sports headphones?