What's In The Box: Bose QuietComfort Ultra Headphones (2nd Gen) – Black (Model: 890101-0100) | Hard Carrying Case | USB-C Cable | 2.5mm-to-3.5mm Audio Cable | Safety Sheet | Bose Manufacturer Warranty | Deco Essentials Exclusive 26 Month Extended Protection Plan --- The Bose QuietComfort Ultra Headphones (2nd Gen) are Bose's flagship over-ear noise-cancelling headphones — the pinnacle of the QuietComfort line, delivering Bose's best noise cancellation, CustomTune ear-profiling that adapts sound to your unique ear shape, Immersive Audio with TrueSpatial technology in three modes, aptX Adaptive with aptX Lossless for the highest-quality wireless streaming available, USB-C lossless wired audio, and up to 30 hours of battery life with ANC active — all wrapped in a refined industrial design with polished metal components, plush synthetic leather cushions, and an even-pressure headband built for all-day comfort. | Bundle | | Bose | QuietComfort Ultra Headphones (2nd Gen) + 26-Month Extended Warranty Protection | Black | Best Buy