Ensure the microphone is plugged into the iPhone.

Adjust arms to achieve a configuration like that shown in the diagram.

Plug the ring light into a free USB port on your computer, or to the included charging brick.

Turn on the ring light.

Unlock the iPhone with the top secret code: 0000 (those are zeros) 

You'll notice there is only one app icon on the phone. Press the button.

Angle the phone so it's slightly above and facing you. 

Press the record button on the iPhone app. That's it!