All of the benefits of QC35 II - Now with support for Bose AR - Two levels of active noise cancellation to help you focus - Powerful 2-microphone system for calls and voice assistants - 20 hours of battery life Bose AR* enabled - the world's first audio-only augmented reality platform - for games, navigation, fitness & more. The best headphones from Bose feature world-class noise cancellation, and now they’re optimized for Alexa and the Google Assistant. Connect to your devices wirelessly with Bluetooth® and NFC pairing, with voice prompts for hassle-free pairing. Keep in touch, get answers and manage your day using just your voice with one-button access to the voice assistant of your choice. Enjoy balanced audio performance at any volume with volume-optimized EQ. Get clear phone calls even in noisy environments with the noise-rejecting dual-microphone system. Access your phone’s default virtual assistant, like Siri. Set your preferred level of noise cancellation, unlock more features and access future updates through the Bose Connect app. Listen to your music wirelessly for up to 20 hours of battery life from a rechargeable lithium-ion battery. Wear them comfortably all day because they’re built with premium materials. Keep listening to your music without battery power by connecting the included audio cable.