Enjoy a rich, warm sound with the Master & Dynamic MH40 Over-Ear Headphones. Using the finest materials, the MH40 Over-Ear Headphones are designed to last. The headphones feature heavy grain premium cowhide leather on the headband exterior surface and ear cup insets. Likewise, they use soft lambskin on the headband interior and ear pads. The lambskin ear pads also wrap around memory foam, offering breathability and comfort. Plus you can easily remove it for cleaning or replacement. The MH40 headphones come with stainless steel components in all high strain areas and a forged aluminum body to increase their durability. Furthermore, the heavy-duty woven cables use oxygen-free copper to provide noise reduction and pure sound. The MH40 Over-Ear Headphones even come with an easily accessible mute button that you can just press to mute or unmute. Finally, the headphones are available in nine color combinations.