The distinctive profile of the KEF M500 headphones references a musical note for its design language. The anodized cast aluminum frame provides a rigid construction for the headset and incorporates a unique two-axis foldable hinge (KEF’s Smart Hinge), making them more adaptable to different sized (and shaped) heads. Breathable sweat resistant ear pads and headband together with the ergonomic racetrack supra-aural ear shells that follow the contour of the human ear provide a tight acoustic seal for improved performance and good noise isolation; they are ideal for prolonged listening.