The MH40 deliver Master & Dynamic's signature sound of richness and warmth. Precision designed from premium materials with high durability, they're built to last. Take smart phone calls on the go with ease too, with a mic and remote that's compatible with apple devices. Superb Sound 45mm neodymium high-performance drivers deliver high class audio. A dedicated button on the ear piece lets you easily mute and unmute with one press. Premium Construction A forged aluminium body is built for long-lasting durability. Read more… The ear pads are constructed from memory foam wrapped in lambskin and are removable for cleaning or replacement. Remote Calls A separate remote and mic with increased vocal clarity and reduced noise means you can control playback and make and take calls from your smart device. It's compatible with iOS.