Consider them your go-to headphones, wherever you go. The first in-ear noise cancelling headphones from Bose give you more control over how you listen than ever before, in all kinds of environments. Block the outside world with full-on noise reduction. Or, choose Aware mode & let some of it in-all while keeping your headphones on & your music alive with lifelike Bose sound. Wherever your day takes you, QC20 headphones keep you connected. To the beat of your music, & the pulse of what's around you.