bose quietcomfort 35 (series ii) wireless headphones, noise cancelling - silver (renewed) bose what happens when you clear away the noisy distractions of the world? concentration goes to the next level. you get deeper into your music, your work, or whatever you want to focus on. that?s the power of bose quietcomfort 35 wireless headphones ii. put them on and get closer to what you?re most passionate about. and that?s just the beginning. quietcomfort 35 wireless headphones ii are now enabled with bose ar ? an innovative, audio-only take on augmented reality. embedded in your headphones is a multi-directional motion sensor. one that bose ar can utilize to provide contextual audio based on where you are. unlock bose ar via a firmware update through the bose connect app. they?re alexa-enabled, too, so you can enjoy entertainment, get information, and manage your day ? all without looking at your phone. adjust your level of noise cancelling between three settings using the action button or the bose connect app. volume-optimized eq gives you balanced audio performance at any volume, and a noise-rejecting dual-microphone system provides clearer calls, even in noisy environments. and with easy bluetooth pairing, 20 hours of battery life, and a durable, comfortable fit ? you can keep the music or the quiet going all day long. included: quietcomfort 35 ii, carrying case, charging cable, audio cable for enjoying music without battery power.bose ar availability and functionality varies. bose ar enhanced apps are currently available for iphone and ipad users only. apps for android devices are in development.