Canon EOS R5 C VR Creator Kit with RF 5.2mm f/2.8 Dual Fisheye Lens - Manual (Page 372)

3.
Record a voice memo.
Hold down the < > button for approx. 2 sec.
Keep holding down the button after [ Recording memo... ] appears, and
speak into the voice memo microphone (1). Each recording can be up
to approx. 30 sec.
To end the voice memo, release the button.
A [ ] icon is displayed at the top of the screen.
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