The revamped system utilizes microphones placed on both the outside and inside of the earcup, enabling more effective measurements to produce the opposing cancellation signal. Along with the improvements to active cancellation, Bose also integrates new materials to enhance the passive noise reduction.

Like the company's other QuietComfort headphones, the QC15 integrates TriPort venting that is claimed to increase low-frequency output without artificially boosting the audio signal. Users can also remove the cable to take advantage of the noise cancellation without listening to audio.

Power is provided by a single AAA battery, similarly to the QC2, instead of the proprietary rechareable battery of the QC3. Bose claims the battery life extends to 35 hours, while a green LED begins flashing through the last five hours.

The QC15 will replace the QC2 model, while retaining the same retail price of $300. Customers will be able to purchase the headphones beginning August 20th.