QuietComfort 35 wireless headphones II are engineered with world-class noise cancellation. And now theyre even better, with an Action button that lets you adjust your level of noise cancellation between three settings. The multi-function button gives you access to your phones virtual assistant, like Siri. And you can enjoy up to 20 hours of wireless listening per battery charge.

Features:

• World-class noise cancellation makes quiet sound quieter and music sound better.  Bluetooth® and NFC pairing with voice prompts make for hassle-free wireless connections. 
• Action button lets you adjust your levels of noise cancellation between three settings.  Access your phones default virtual assistant, like Siri or your Google Assistant.  Volume-optimized EQ gives you balanced audio performance at any volume. 
• Noise-rejecting dual-microphone system provides clearer calls, even in noisy environments.