Awaken your sound with QuietComfort Ultra Headphones (2nd Gen). Obsessively engineered with Bose’s best noise cancellation for headphones, plus spatialized audio to expand sound, every beat hits harder and every melody takes up more space. Bose Immersive Audio takes what you’re hearing out of your head and places it in front of you for a more natural listening experience. CustomTune technology personalizes your audio by analyzing the shape of your ears and adapting the sound so everything you listen to hits exactly as it should. With up to 30 hours of battery life (23 with Immersive Audio)* and unrivaled comfort from luxe materials, these wireless Bluetooth headphones let you sink deeper into your favorite songs and sounds. The earcups gently hug your ears, and the headband evenly distributes pressure while sleek, polished metal arms add a stylish touch. Easily pair two devices simultaneously with Bluetooth multipoint connectivity and keep track of what you have paired in the Bose app. * Testing conducted by Bose with active noise cancelling on and audio playback at a loudness of 75dBSPL. Battery life varies based on settings and usage.** Quick charge testing conducted by Bose by charging battery-depleted headphones for 15 minutes, then resuming audio playback at a loudness of 75dBSPL. Battery life varies based on settings and usage. Time to achieve fully charged headphones was determined by charging battery-depleted headphones to 100%.