Features When your home becomes your office Turn any space into an instant office — or simply a place to unwind, listen to music, or make phone calls. Bose Noise Cancelling Wireless headphones deliver everything you need to be productive: world-class noise cancelling, Bluetooth® and NFC pairing for quick wireless connectivity, and a noise-rejecting dual-mic system. High-capacity battery Listen to your music wirelessly with up to 20 hours of battery life from a rechargeable lithium-ion battery. Bose Connect app Helps you set your preferred level of noise cancellation, unlock more features, and access future updates. Active noise cancellation Eliminate noisy distractions and focus on what matters most with renowned noise cancellation. Set your preferred level of noise cancellation, unlock more features, and access future updates through the Bose Connect app. Perfect call and voice quality Get clear phone calls even in noisy environments with the noise-rejecting dual-microphone system. Built-in voice assistant Bring Amazon Alexa or the Google Assistant with you wherever you go. Enjoy entertainment, get information, and manage your day - all with your voice. Wireless connectivity Connect to your devices wirelessly using Bluetooth 4.1 and NFC pairing with voice prompts for hassle-free pairing. Listen longer Keep listening to your music without battery power by connecting the included audio cable.