Bose QuietComfort Ultra Headphones 2nd Gen White (890101-0200) is a premium over-ear wireless headphone designed for everyday use and travel. CustomTune technology adapts the sound to the shape of your ears for a more personalized and high-quality audio experience. Quiet Mode delivers the best noise cancellation, while Aware Mode lets you hear your surroundings. Soft ear cushions and an even-pressure headband ensure long-lasting comfort. Battery life lasts up to 30 hours in Quiet and Aware Mode (23 hours with Immersive Audio), with support for listening while charging. Optional wired connection provides lossless, high-resolution sound. The Bose app allows customization of EQ settings and shortcuts.