The Ultrasone Edition 10 Headphones ($2,750) combine breathtaking air-quality, 3-dimensional sound with pure luxury. Each set is made with the finest materials like Ethiopian sheepskin leather, lightweight matt ruthenium, hand-crafted Zebrano wood inlays, and sound technologies, such as , ULE-technology (Mu Metal shielding) and S-Logic Plus technology. The special cable with silver-plated, oxygen-free copper and Aramid fiber endows the Edition 10 with greater electron flow, lower weight and a maximum of flexibility and durability. [source]