Technology Enhanced Learning Team


Broadcast a message to Zoom breakout rooms

Zoom logo.






This is how you, as a host, can broadcast a typed or voice message to participants in Zoom breakout rooms.


First ensure you are running the latest version of the Zoom desktop app.


In Zoom, once you have set up your breakout rooms, select ‘Open All Rooms’.
Open all rooms button.


Open all rooms button.


A new window will give you the option to ‘Close Rooms’ or ‘Broadcast’.
Select ‘Broadcast’.

Broadcast button highlighted.









Broadcast button enlarged.


You will be presented with two further options: ‘Broadcast Message’ and ‘Broadcast Voice’.

Broadcast options menu.






To send a typed message to everyone in the breakout rooms, select ‘Broadcast Message’.

Broadcast message highlighted.






A text window will appear in which you can type your message to all participants.

Window in which to type the required message.







When you have finished typing your message, click on the blue Broadcast button to send the message to all breakout rooms.

Broadcast button to send the message.







Note: Messages only broadcast for about 5 seconds to participants in the breakout rooms, so you are advised to keep them very short. If you are sharing important details with the breakout rooms, use the chat window instead or relay the message several times.



Return to the Broadcast menu.

Broadcast option menu.






To speak to the participants in the breakout rooms select ‘Broadcast Voice’.

Broadcast menu highlighting option to 'Broadcast Voice'.






A new ‘Broadcast Voice’ window will appear.

Broadcast voice window with highlighted speaker icon.








Click the speaker icon to speak to the participants. 

Broadcast voice icon.








When broadcasting, the speaker icon is replaced by a waveform.

Broadcast voice icon changes to an image of a waveform.








Hovering your mouse over the waveform icon will present a new ‘stop’ option. Press this to end the broadcast.

Broadcast voice stop icon.







Note: If you do not switch off the broadcast option, your microphone will continue to broadcast any sound or conversation you have!



A message will also appear on screen giving you the option to hold the ‘B’ key down whilst speaking, rather than clicking on the speaker icon.

Tip to hold B on the keyboard as an alternative option when broadcasting your voice.





Note: the B key on the keyboard works slightly differently to using the speaker icon. If you press B, you must continue to hold the key until you finish speaking. When you remove your hold on the B key the participants will no longer hear you.



To remove the B key button message select ‘Got It’.

Highlighted 'Got It' button.






An additional window will appear notifying you that you are currently broadcasting to all rooms.

Pop up window informing host that they are currently 'broadcasting to all rooms'.






You may decide to alert participants if you are going to speak to them during a breakout room, otherwise it might come as an unexpected surprise!


Did this answer your query? If not, you can raise a ticket on the online Helpdesk or email: . Alternatively you can also request a particular guide or highlight an error in this guide using our guides request tracker.

Produced by the the Technology Enhanced Learning Team at Queen Mary University of London.

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