Bose QuietComfort Ultra Headphones Gain Bluetooth LE Audio and Auracast Support
Bose announced a firmware update for its QuietComfort Ultra Headphones (2nd Gen) that introduces Bluetooth LE Audio support, enabling Auracast functionality for sharing audio streams and the LC3 codec for higher-quality audio with lower power consumption. The update also expands USB-C audio capabilities for improved voice call quality and gaming performance, plus adds 5.1 spatial audio support for compatible Android devices. The beta firmware will be available this week through the Bose app, positioning the company alongside Sony as a premium offering with Auracast support.
Bluetooth LE Audio represents a significant technical advancement, pairing reduced power demands with superior audio fidelity through the LC3 codec—a meaningful improvement over the older SBC standard used across most wireless devices. Auracast, the broadcasting feature enabled by this technology, expands beyond personal audio sharing to support public venues like theaters and sporting events, where audiences can receive synchronized commentary or translations directly to their headphones.
The firmware also strengthens the headphones' wired connectivity, optimizing USB-C performance for video conferencing calls and gaming scenarios. These refinements position the QuietComfort Ultra as a versatile device spanning both wireless and wired use cases, with particular advantages for Android users whose devices currently lead in LE Audio adoption.
The update may accelerate mainstream adoption of Bluetooth LE Audio by placing it in premium consumer headphones, potentially encouraging smartphone manufacturers to prioritize the technology's availability. Users with compatible devices could experience extended battery life and improved audio quality during calls and streaming. However, the current limitation to select Android and Windows devices means the broader market impact remains incremental, affecting primarily early adopters and enterprise users in supported venues before wider ecosystem support emerges.