Most headphones and headsets you have listened to have probably used dynamic drivers. Now, with more niche audiophile products becoming available to the mainstream, planar magnetic headphones are quickly making their way onto the scene. Planar magnetic headphones in the past were expensive and were super hard to drive with standard devices, so they haven't really made a presence outside of the audiophile community. But now, with headphones like the HiFiMan Sundara and the Sony Inzone H9 gaming headset, gamers are able to see what these drivers are all about.