With the Bose® QuietComfort 45 Bluetooth® Headphones, you feel it the minute you put them on. The soft, plush cushions seal you in. Then you flip the switch and whoosh - the world fades. And the music starts. The original noise cancelling headphones are back, now with better quiet (plus the new Aware Mode), shockingly light materials for premium comfort, and proprietary acoustic technology for deep, clear sound. Its an icon reborn.