In store these are going for $450.00. This Acoustic Noise Cancelling technology, also found in Bose QuietControl 30 headphones, is key to taking the edge off a noisy world. Well, that plus two directional microphones in each earbud to help you focus on the voices you want to hear—and filter out the noises you don’t. All so you can comfortably hear every word. And with other special controls built in, listening to music or other content on a smartphone is made better, too.