Open Control Center: On iPhone X or later or iPad with iOS 12 or later: Swipe down from the upper-right corner of the screen.On iPhone 8 or earlier or iOS 11 or earlier: Swipe up from the bottom edge of any screen.
Press and hold the audio card in the upper-right corner, then tap Airplay .
Tap each speaker or TV that you want to play the current audio to.
You can also AirPlay audio from an app you're using on your iOS device. Just open the app, tap Airplay , then tap a speaker or tap multiple speakers.
