Bowers & Wilkins PX Active Noise Cancelling Wireless Headphones, Space Grey $143.55 Very Good Item will come in original packaging. Packaging will be damaged. [amazon template=image&asin=B07574TYWW] Bowers & Wilkins PX draws on decades of Bowers & Wilkins design experience to take you to the very heart of the music with its breath-taking performance Perfect sound anywhere, on a plane, in the street or in the office. The best adaptive noise cancelling headphones, customizable to your exact preference. Battery life- Up to 22 hours BT/ANC. Up to 29 hours BT/no ANC. Up to 33 hours ANC/wired. Up to 50 hours wired/no ANC Built with the same drive units from our P9 Signature headphones, the PX provides optimized listening performance. We have also subtly angled the drivers to provide a more natural stereo perspective. Impedance: 22 ohms (passive) When you need to pause, lift an ear cup. Put PX down and it goes to sleep. Pick it up to resume playing. Worry less about your headphones and enjoy your music more. With a 22-hour battery life, PX is always ready; put it down and it goes into power-saving sleep mode; pick it up and you’re good to go. PX is the smartest Bluetooth headphone on the market. Manufacturer Website Price history (new):Read more, including price history ->