Use the VoiceOver caption panel on Mac
The caption panel shows what VoiceOver is speaking, and can be helpful when sharing your Mac with sighted users.
Note: VO represents the VoiceOver modifier.
Show or hide the panel
Do one of the following:
Open VoiceOver Utility (press VO-F8 when VoiceOver is on), click the Visuals category, then click Caption Panel.
Press VO-Command-F10 to show or hide the panel.
This command turns the caption panel setting on or off in VoiceOver Utility.
To show or hide the caption panel, the braille panel, and the VoiceOver cursor, press VO-Command-F11.
Move or resize the panel
Press VO-Shift-F10 until you hear the action you want to perform.
For example, if you hear “resizing” but you want to move the caption panel, press the keys again to hear “moving.”
Press the VoiceOver modifier with arrow keys to move or resize the caption panel.
When you’re done, press the Escape key or Fn-Tab.