Introducing Ultra Open Earbuds. Their cuff-like fit leaves your ears totally open so you can still hear the world around you, while OpenAudio technology provides you with rich, private sound. Listen to your music and life — at the same time, all the time.Key features All-day comfort Surprisingly private Immersive Audio Up to 7 hours of play time Simple, satisfying button controls. IPX4 rating for water resistance Open-ear design Bluetooth multipoint connectivity What’s in the Box 2 Bose Ultra Open Earbuds Charging case USB-C® (A to C) cable (12") Safety sheet