Bose Noise Cancelling Headphones 700Keep your phone in your pocket and your head up to the world with easy access to voice assistants for music, navigation, weather, and more. Confidently take a call or speak to Alexa in any environment, with an unrivaled adaptive four microphone system that isolates your voice from surrounding noise. Personalize your environment with 11 levels of noise cancelling control distractions or let ambient sound in. Access Alexa with the push of a button, or