Bose has announced a new iteration to its line of noise-cancelling QuietComfort headphones. We improved nearly every dimension — greater noise reduction, lifelike audio, a striking new profile and styles, and a new earcup pivot to fold up smaller than ever, Bose Noise Reduction Technology Groups Sean Garrett said in a statement. Described as capable of cancelling more noise than any other Bose consumer headphone in history, the QuietComfort 25 includes up to an estimated 35 hours of battery life.