One more mile. One more rep. When youre pushing your limits every day, you need energizing sound to drive you on. With exclusive TriPort technology, Bose SoundSport in-ear headphones deliver full, balanced sound that conventional sports ear buds cant match. And with acoustic ports positioned to resist sweat and weather, and hydrophobic cloth that keeps moisture out, they'll survive your toughest workouts, too. SoundSport in-ear headphones also stay in place. Proprietary StayHear tips conform to you rears shape, so they stay comfortably in-ear even during long, vigorous exercise. And when the workout's over, you can easily store and protect them in their matching carrying case. Plus, they have an inline microphone and remote that let you switch easily to calls on your iPhone, and provide control for select iPod, iPhone, and iPad models.