The Bose QuietComfort 35 (Series II) Wireless Noise Cancelling Headphones. All black version. Features: - Noise-rejecting dual-microphone system for clear phone calls and voice activation, which now includes Amazon Alexa. Simply update your software via the Bose Connect App and you will have the ability to hit the Action button to access hands-free voice control. You can also use the Action button to adjust the level of noise cancellation. - Three levels of world-class noise cancellation for better listening experience in any environment. - Alexa-enabled for voice access to music, information and more. - Up to 20 hours of wireless play time from a rechargeable lithium-ion battery; up to 40 hours of listening in wired mode. - Balanced audio performance at any volume. QuietComfort 35 wireless headphones II have a range of 9 m (30 ft.) from the source device Hassle-free Bluetooth pairing, personalized settings, access to future updates and more through the Bose Connect app.
