Sound like a pro We listened to real athletes with the aim of designing bluetooth earbuds that matched their toughest workouts — and we heard over and over that sound was their top priority. Powerbeats Pro boast powerful, balanced audio thanks to an entirely redesigned acoustic package that delivers pure sound reproduction, enhanced clarity and improved dynamic range. Because great sound starts with proper fit, these earbuds were also crafted with a focus on ergonomic comfort to give you the best listening experience possible. Play both sides or just one at a time Left, right, or both, enjoy ultimate control over your audio. Each earbud has full volume and track controls so you don’t need your iPhone or other device to adjust your music. Auto Play/Pause sensors know when the earbuds are in your ear, jumpstarting your workouts as soon as you’re ready to go. And with voice-assistant capability on a variety of compatible devices, you can stay in the zone. Power. Play. Long hours of training? Marathons? Bring it. Each earbud has up to 9 hours of listening time so you can keep your music going. With the charging case, you’ll get more than 24 hours of combined playback. If you’re in need of extra juice, 5-minute Fast Fuel charging gives 1.5 hours of playback when the battery is low.1 To further conserve battery life, Auto On/Off sensors detect when earbuds are idle and automatically enter sleep mode. When you’re ready to use them again, simply put them back in your ears and you’ll be off and running. Now, you can spend less time worrying about charging and more time charging forward.