Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
speaker-selection directive controls whether the current document is allowed to enumerate and select audio output devices (speakers, headphones, etc.).
When this policy is enabled and the permission is denied:
MediaDevices.enumerateDevices()won't return devices of type audio output.
MediaDevices.selectAudioOutput()won't display the popup for selecting an audio output, and will reject the promise with a
HTMLMediaElement.setSinkId()will throw a
NotAllowedErrorif called for an audio output.