Bose QuietComfort Ultra Wireless Over-ear Headphones, Sandstone

The Bose QuietComfort Ultra are over-ear headphones with a closed-back acoustic system that provides passive noise isolation. They connect to source devices wirelessly using Bluetooth 5.3 and also include a detachable 3.5 mm to 2.5 mm cable for a wired audio option. The primary feature is an adaptive active noise cancellation system, which utilizes built-in microphones to reduce ambient sound. This technology is also applied to voice calls to improve clarity. Digital signal processing is used to manage the final audio output.

These headphones are constructed from a combination of plastic, aluminum, and protein leather components, resulting in a total weight of 250 grams. The internal lithium-ion battery provides up to 24 hours of use and is recharged via a USB-C connection. A full charge takes approximately 3 hours, with a 15-minute fast charge option available. On-earcup controls consist of a combination of physical buttons and a touch-sensitive surface for playback management. For transport, the headphones are foldable and come with a hard-shell carrying case.

• Over-ear, closed-back design
• Bluetooth 5.3 and 3.5 mm wired connectivity
• Adaptive Active Noise Cancelling system
• Up to 24 hours of continuous audio playback
• Full recharge in 3 hours via USB-C
• 15-minute fast charge capability
• Supports SBC and AAC audio codecs
• Combined touch and physical button controls
• Foldable construction weighing 250 grams
• Includes carrying case, audio cable, and charging cable