Do I need a headset with a microphone?

We strongly recommend that all users of the lesson space should use a headset with an integrated microphone.

Without a headset the sound that comes through your speakers will feed back into the microphone and the user at the other end will get an echo. Not using a headset might also make the quality of your recording of the tutorial worse. 

If you are unable to find a headset with a microphone the lesson space will still work just fine so long as you use a pair of normal headphones to stop the sound feeding back to the other user.