Top audio engineers and professional audio reviewers have praised the sonic performance, which has received critical acclaim. Unique 45 millimeter wide aperture drivers featuring copper-clad aluminum wire voice coils and rare earth magnets Outstanding clarity over a wide frequency range with precise, deep bass response The ears are curved by the circumaural design, which provides superior sound isolation in noisy settings. Professional-grade earpad and headband materials provide greater durability and comfort, and 90-degree swiveling earcups make one-ear monitoring simple.