Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 912)

3.
Adjust the volume.
Turn the < > dial to adjust the volume, then press the < > button.
Note
You can check sound from the built-in microphone or an external microphone on
headphones when [
: Sound recording ] is set to an option other than [ Disable ]
and [ High Frame Rate ] is set to [ Disable ].
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