CH - 1 contains in each earpiece both
an armature speaker to deliver crisp high and mid tones (like most Bluetooth earphones) and a dynamic 10 mm driver to deliver deep, resonant bass.
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.