The over-ear M500s use a full-range 40mm neodymium driver with a super light, copper clad aluminium voice-coil that’s been tuned by KEF’s engineers to deliver a “powerfully musical sound with a tight, clean bass”.
The M500s feature an aluminium frame, with breathable and sweat resistant memory foam earpads and headband.
The frame design also features a ‘Smart Hinge’; unlike most headphones that require two hinges to fold and rotate the ear pads, the M500s’ Smart Hinge can rotate on two axes, making them adaptable to different sized (and shaped). It also allows you to fold them up into a highly compact form for carrying around.
The in-ear M200 earphones utilise a user adjustable Secure Arm that helps to keep them snug in the ear, and a rigid aluminium driver housing that” eliminates unwanted vibrations and raises sound performance to new levels”.
The M200s also use ‘DDD’ (Dual Dynamic Driver) tech, a two-way system with a 10mm driver for the bass and a 5.5mm dynamic neodymium driver for midrange and high frequencies.