In this video tutorial, viewers learn how to make a microphone with a pair of headphones. Headphones have properties and construction similarities that are similar to a microphone. Instead of plugging the headphones into the headphone jack, plug it into the microphone jack. Then you just simply hold your headphones up to your mouth and speak into it. The sound quality produced from the headphones is not very good and it should only be used if you don't have a microphone. This video will benefit those viewers who don't have a microphone but need to use one in case of an emergency.