We eluded to the wild world of electrostatic drivers in the intro, but let's do a crash - course review for those who aren't yet intimate with the technology: Most in - ear headphones use one of two driver technologies:
dynamic drivers, which are essentially micro-sized versions of the speakers in your home, or balanced armature drivers, which are extremely
tiny tubes (armatures) wrapped in a voice coil that vibrates when electrified, again, creating
sound.