How a headphone works.

As a audiophile, i have been really interested in how my headphone works. Until recently, i found a video briefly but clearly explained the mechanism behind a headphone. Basically, there are three most important parts. The first one is called diaphragm, which is more commonly known as a column. It is made to pull the air back and forth to create sound. The second and third part are a simple magnet plus a voice coil. When the electricity goes through cable to our magnet, the magnet a electromagnetic field. This field pull the voice coil back and forth, which is attached to the diaphragm, therefore creating sound.