Hearing is believing. Experience clear, lifelike sound that only Bose(R) can deliver. The Bose QuietComfort(R) 15 Acoustic Noise-Cancelling(R) headphones deliver crisp, brilliant audio that does your favorite music justice. The redesigned ear cushions not only ensure a comfortable fit, but they also help to reduce outside noise across a wider range of frequencies thanks to microphones both inside and outside each ear cup that sense and reduce more sound around you. The ear cups also fold flat and rotate 90 degrees so you can easily store them within the included carrying case. From Bose.