Thank you for viewing. This is a nearly unused item purchased in 2024, released in October 2023. Purchased from the official BOSE online shop. QCULTRAHPBLK ● Take your listening experience to a new level Experience unprecedented quiet with the world's most advanced noise cancellation. Groundbreaking Bose Immersive Audio delivers a more immersive sound experience, regardless of content or source. The refined design and luxurious materials create amazing comfort. Take the emotional impact of music to a new level. ● Immersive audio. Everything feels more real Bose Immersive Audio pushes the boundaries of listening. It creates an immersive listening experience where the sound unfolds right in front of you. You'll feel like you're sitting in a VIP seat at a concert. For those who seek overwhelmingly realistic sound that you can almost touch. Enjoy an unprecedented listening experience where sound resonates naturally. ● World-class over-ear noise cancelling headphones The QC Ultra Headphones feature even better active noise cancellation than previous products, supporting you when you want to focus. Use Quiet Mode when you want to concentrate on work or music without being disturbed. If you want to enjoy content while paying attention to your surroundings, switch to Aware Mode to hear the sounds around you or have a conversation without removing the earcups. Immersion Mode allows you to enjoy Immersive Audio with full noise cancellation. 【Specifications】 Included items: Carrying case, USB (A to C) cable (0.5 m), 3.5 mm - 2.5 mm audio cable (1 m) Weight: 253g Dimensions: 140x195x50mm Bluetooth version: 5.3 Continuous playback time: Approximately 24 hours (up to 18 hours with Immersive Audio) Charging time: Approximately 3 hours Quick charge function: Up to approximately 150 minutes with a 15-minute charge Bose Model Name...QuietComfort Ultra Headphones