AirPlay 2 speakers: these are the speakers that will use Apple’s big streaming update
https://www.techradar.com/news/airplay-2-speakers
Apple has released iOS 11.4 which means we all get to finally try AirPlay 2, Apple's streaming feature that has been in development for almost a year now.
AirPlay 2 is Apple's updated way to store content to TVs and other devices. It's built for video and audio but it's the audio side that everyone's interested in as it means you can pair two Apple Homepod speakers, arguably a feature that really should have been available day one of the Homepod’s release.