Focal engineers have put all their know-how in the manufacture of loudspeakers at the service of wireless headphones and noise reduction. Manufactured in the Focal workshops and inheriting patented technologies, the 40 mm full-range electrodynamic aluminum/magnesium loudspeakers are a patented Focal innovation. Aluminum increases dome rigidity and greatly reduces distortion, while the addition of magnesium provides excellent damping. This alloy enables the loudspeakers to deliver deep bass, smooth treble and clear vocals for extremely accurate sound.