In-ear. Sound cancelling. Better sound. Consider them your go-to earphones, wherever you go. The first in-ear sound cancelling earphones from Bose give you more control over how you listen than before, in all kinds of environments. Block the outdoors world with full-on sound reduction. Or, select Conscious mode and let a few of it in-all while keeping your earphones on and your music alive with realistic Bose Â® audio. Wherever your day takes you, QC Â® 20 earphones keep you linked. To the beat of your music, and the pulse of exactly what's around you.