A dynamic driver, sometimes referred to as a “moving coil” driver is the most common driver found in headphones. It is the same technology found in speakers around your home, but on a much smaller scale. This type of driver consists of alternating magnetic fields powered by a tiny wire coil (or a “voice coil”). As the current changes based on the sound playback, the coil reacts with the magnetic field and the lightweight diaphragm rapidly compresses and decompresses the air by pulling the diaphragm in and out from the ring within the driver to create the sound you hear.