Bose QuietComfort Wireless Over-Ear Headphones, Bluetooth, ANC, Blue Dusk Legendary noise cancellationIsolate yourself from the outside world with high-fidelity sound, eliminate distractions and immerse yourself deeply in your music. Modes for any musical moment. Silence the world with Quiet mode, enjoy complete transparency with Aware mode, or combine the two with a custom mode in the Bose app. Comfortable all the time listeningPlush sponges gently hug your ears, while a comfortable yet secure headband helps keep the headphones in place when you're on the go. So go ahead, listen more. Marathon your favorite playlists with up to 24 hours of battery life Own the rhythm. Let the bass sing. Adjustable EQ lets you turn up the bass, adjust the treble, and balance the mids to get the sound that suits you best. Enjoy private listening With SimpleSync technology, connect your headphones to a Bose smart soundbar to enjoy your favorite show without disturbing others.