The Bose QuietComfort Ultra headphones deliver immersive audio that puts you in the center of your music movies and games. Whether you want to tune out the world or stay aware of your surroundings you can adjust the noise cancellation level to suit your preference. With CustomTune technology you can personalize the sound to match your ears and listening style. Plus enjoy up to 24 hours of wireless playback and a comfortable fit that feels like wearing nothing at all.