To set up your microphone, click on the Screencastify icon () and select your microphone from the drop-down list.
To set up your webcam, enable the Embed Webcam option and select your webcam from the drop-down list.
And that's it! From now on, you'll be able to narrate over your recordings and record your webcam whenever you'd like.
Prefer to see this all in a video? We're partial to video, too! Check out the whole process on the Screencastify Help YouTube page:
It's time to: