Bose is preparing to release a firmware update, version 10.12.12, for its QuietComfort Ultra (2nd generation) headphones. This update introduces support for a newer Bluetooth technology called **Bluetooth LE Audio**, which enables features such as Auracast and continuous audio streaming using the LC3 codec. The update also improves USB-C audio performance, which enhances audio quality during voice calls and gaming sessions. This firmware is currently available in beta form and can be accessed through the Bose app. The update adds support for **5.1 spatial audio** on compatible Android devices, allowing for a more immersive listening experience. The new Bluetooth LE Audio features are only available on compatible Android and Windows devices. The QuietComfort Ultra (2nd generation) headphones support Bluetooth 5.4 and Bluetooth Low Energy, which contribute to advanced auto-sleep and auto-awake features. Compared to many competitors, Bose is using modern audio technologies, faster connectivity, and optimized power consumption to enhance the user experience. The firmware update also expands USB-C support, allowing users to balance gaming and chatting more effectively. It also improves vocal performance during calls using video conferencing apps. The headphones can now use a 48 kHz sampling rate for speakers and a 16 kHz sampling rate for the microphone during gaming or video calls. These features are available when connected to PCs and mobile devices but not when connected to gaming consoles. Bose is among a small group of high-end brands, along with Sony, that support Auracast, a feature based on the Bluetooth LE Audio standard. Other brands like JBL and Google have also adopted Auracast, but may not match Bose in the performance of their circumaural (over-ear) headphones. Auracast allows users to connect to compatible locations such as theaters, churches, and stadiums to listen to real-time content. On a smaller scale, it also lets users with compatible phones and headphones share their phone's sound with an unlimited number of headphones. Auracast uses the mandatory LC3 codec, which offers better sound quality while using less power than the widely supported SBC codec. Currently, only some Android phones support LE Audio, Auracast, and the LC3 codec, meaning that Android users can benefit the most from these new technologies. The improvements from Bose position its flagship headphones as strong competitors in the connectivity category. They refine audio performance via USB-C, where Sony falls short, offer LE Audio features where Sennheiser does not, and provide compatibility with Android devices, where Apple does not.