Limited-edition Rose Gold QC 35 headphones IIThree 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-upHassle-free Bluetooth pairing, personalized settings, access to future updates, and more through the Bose connect appEnabled with Bose AR - an innovative, audio-only version of augmented reality - Through a firmware update via the Bose connect app.For iPhone, iPad, and Android users, be sure your product's firmware is up to date through the Bose connect app. Then you can access a showcase of Bose ar-enhanced apps with Links to download them.