Enhanced phone call performance and call handling from either earbud High-Performance Workout Earbuds Powerbeats Pro, powered by the Apple H1 headphone chip, will revolutionize the way you work out. Built for elite athletes, these totally wireless Earbuds have no wires to hold you back. The adjustable, secure-fit earhooks are customizable with multiple eartip options for extended comfort and are made to stay in place, no matter how hard you go. This lightweight earphone is built for performance with a reinforced design for sweat and water resistance so you can take your workouts to the next level. With up to 9 hours of listening time in each earbud and powerful, balanced sound, you'll always have your music to motivate you. Sound Like a Pro We listened to real athletes with the intent to design wireless Earbuds that matched their toughest workouts - and over and over, we heard that nothing was more important than sound. Powerbeats Pro boast powerful, balanced audio via an entirely redesigned acoustic package, delivering pure sound reproduction, enhanced clarity, and improved dynamic range. These earbuds were crafted with a focus on ergonomic comfort to deliver the best listening experience possible.