NOB Bowers Wilkins - PX7 Wireless Noise Cancelling Headphones - Space Gray New Open Box - Minor cosmetic blemishes if any Wherever you go, experience music at its highest level. No matter where you are, powerful drivers and adaptive noise cancelling put you in the center of the music. Custom 43mm drivers Great sound begins with great drivers. The drivers in the PX7 are the largest in our headphone collection, built and tuned by the same engineers behind the 800 Series Diamond. Experience clear, spacious and powerful sound. Adaptive Noise Cancelling This hybrid technology uses feed forward and feedback noise detection with custom tuned software to automatically filter out noise without destroying fidelity. An auto mode adjusts to noise conditions to deliver the right amount of noise cancellation. All-day rechargeable battery 30 hour battery life with ANC. When you need more power, a 15-minute quick charge provides five hours of audio playback. Clear Call Clear Voice Communication v2 technology provides you with clear call and voice quality. The microphones pickup your voice while intelligent software ignores noises around you. Bluetooth 5.0 with AptX Adaptive PX7 is designed to stream media wirelessly from Bluetooth audio devices, such as smartphones, tablets or personal computers. Wear Sensor PX7 obeys your every move. Lift an ear cup to hear what's happening around you and the music automatically stops. Put it back and the music plays on. Take them off to go run an errand and they'll go into a power saving mode. Put them back on when you return and they'll resume playback. Multi Point Connection Connects to two BT devices simultaneously so you can listen to music from your laptop and answer a call from your phone. Woven carbon fiber composite arms Mimics the strength and agility of the fastest vehicles in the world, channeling pure sound to you and holding up against everyday wear and tear. Auxiliary wired connection PX7 can also connect to audio sources using the supplied 3.5mm audio or USB cables.