The Edition 8 Palladium is a luxurious black & silver closed-back headphone that employs Ultrasone&0s latest S-Logic Plus technology, resulting in an impartial acoustic feeling that affords the listener the utmost spacious tonal perception. Catering to the growing need of audiophiles, who not only demand impeccable sounding, but also aesthetically pleasing headphones, Ultrasone has adorned the outer earcups of these Edition 8 headphones with palladium, a rare material that increases durability & limits tarnishing.