To create a voice tweet, create a post in the same way you would for text.
Then, find the audio option — the icon looks like a bunch of sound waves. If you don’t see the icon, that means the voice tweet feature isn’t yet available to you. Click this icon to start your recording.
Then, press record. You can tweet out up to 140 seconds worth of audio. If you record more than that, don’t worry: A Twitter thread will automatically be created with all your snippets of audio. Then, send tweet.
HOW TO LISTEN TO A VOICE NOTE ON TWITTER
To listen to a voice tweet that appears in your feed, simply click on the audio to play. You’ll see what audio is playing in a bar across the bottom of your app.