Shut out the world and lose yourself in your music, or let the world in. It's your choice with the first in-ear noise cancelling headphones from Bose. The QuietComfort 20 Acoustic Noise Cancelling headphones let you enjoy better sound every day, everywhere you go. Turn on noise cancelling to reduce surrounding distractions and focus on your music. Or, at the touch of a button, activate Aware mode to hear what's happening around you. Proprietary StayHear+ tips provide a soft, secure fit. The inline microphone and remote let you switch easily to calls on your smartphone.