At WWDC 2017, Apple announced speaker support for the Home app, powered by an update to AirPlay. While introducing Airplay 2, they highlighted several speaker makers that would add support for the new protocol. Nearly a year later, iOS 11.4 finally launched with support for the updated wireless audio protocol.
As of today – 4 months after becoming available in iOS – speaker manufacturer Libratone has made good on their AirPlay 2 promise.