In the space, touch and hold the microphone , and then start talking.
When you're finished, let go of the microphone to save the recording.
(optional) Tap Play to preview your recording. If you're not happy with it, you can delete it and try again.
Tap Send to send your voice clip.
Webex Teams | Send a Voice Clip
Voice clips are short audio recordings that you can send to a person or a space. You can record, preview, and send a voice clip directly from the message area.