You can use SharePlay while playing music on a HomePod, Apple TV, or other third-party Bluetooth® speaker, and everyone can control the music with their iPad.
The host must have an iPad with iPadOS 18 or later and be an Apple Music subscriber.
Participants must have an iPad with iPadOS 18 or later, but don’t need to have an Apple Music subscription.
Everyone must have an internet connection and Bluetooth turned on.
Everyone must allow their contacts to discover them when playing music to a speaker—go to Settings Adjust the sound in Music on iPad