PRODUCT OVERVIEWBose QuietComfort 35 II Wireless Noise Cancelling Headphones are over-ear headphones from Bose featuring world-class noise-canceling technology and now theyre optimized with Amazon Alexa and the Google Assistant. Enjoy a balanced audio performance at any volume with volume-optimized EQ. And you can make or receive clear phone calls even in loud environments with the noise reduction dual-microphone system in these Bluetooth headphones. Connect to your devices wirelessly with Bluetooth and NFC pairing with voice prompts for easy Bluetooth pairing. Thanks to Amazon Alexa and the Google Assistant you can keep in touch get answers and manage your day using just your voice with one-button access to the voice assistant of your choice. You can also access your phones default virtual assistant like Siri through your headphones. Together they can create astonishing real-world experiences and fundamentally new ways to work travel exercise learn play and more. Wear these comfortable headphones all day because theyre built with premium materials. Listen to your wireless headphones for up to 20 hours of long battery life from a rechargeable lithium-ion battery. Keep listening without battery power by connecting the included audio cable. Unlock more features and access future updates through the Bose Connect app.KEY FEATURESThree levels of world-class noise cancellation for better listening experience in any environmentAlexa-enabled for voice access to music information and moreNoise-rejecting dual-microphone system for clear sound and voice pick-upBalanced audio performance at any volumeHassle-free Bluetooth pairing personalized settings access to future updates and more through the Bose Connect app. USB cable: 12 inchBose AR-enabled — an innovative audio-only version of augmented reality