A firmware update is being rolled out to Bose SoundTouch and Lifestyle speakers to bring the promised compatibility with Apple's AirPlay 2.

Bose, which has previously released AirPlay 2 speakers, has now begun a firmware update that will bring the feature to its SoundTouch systems.

Firmware update 24.0.7 is rolling out to all users and once speakers have been updated with it, they will be AirPlay 2 compatible.

"The update will roll out in phases and you may not receive the update until February 25," said the Bose company in a statement. "When the update is available for your speaker(s), log into the SoundTouch app and accept the update."

AirPlay 2 is Apple's system for letting users redirect audio, video or photos to other devices. So SoundTouch users will now be able to start music on their iPhone and have it play back on the Bose speaker.

This Bose update is the latest in a series of speaker manufacturers adding AirPlay 2 functionality over the last two years.