Features a newly designed high-performance DLC (Diamond-Like Carbon) composite diaphragm. It utilizes three materials with different characteristics, including DLC, to form each part of the diaphragm. DLC is characterized by its high rigidity, high damping factor, and light weight, providing overall acoustic performance that surpasses beryllium. Equipped with high-purity copper and silver-plated Star Quad structure cables. The 4-core Star Quad structure effectively reduces the effects of skin effect and proximity effect, and also serves to prevent interference. The included ear tips are newly developed "Spring Tips (Seisen)" ear tips. These ear tips suppress unwanted resonance through a special diffusion structure, significantly reducing high-frequency linear distortion caused by nozzle resonance. While making the high-frequency timbre more natural, the special reinforcing material support design prevents bass loss due to sound leakage. The special material allows them to fit the ear canal without feeling sticky. New generation flagship 10mm dynamic driver. After more than two years of development, aiming to significantly improve the linear dynamic range and achieve non-linear distortion across the entire frequency range comparable to electrostatic headphones, the KATO, equipped with the new ULT (Ultra-Linear-Technology) ultra-linear dynamic driver, was born. It delivers more powerful dynamics, lower distortion, restored timbre, open listening experience, and richer yet natural details. The housing is cast using the MIM (Metal Injection Molding) method, achieving high strength and an irregular appearance. The inner surface has a fine and irregular surface, which has a positive effect on suppressing standing waves. By repeatedly polishing by hand for the finish, the entire surface has achieved a mirror-like smoothness. Input plug: 3.5mm stereo mini Exhibition item Unused item, only tested before listing There are fine scratches, but It is in a beautiful condition without noticeable scratches. Accessories: None Shipping included. (Shipping costs apply only for those in remote islands) Sapporo and Hakodate in Hokkaido are not treated as remote islands. (Those within Hokkaido) Oshima in Tokyo and Sado in Niigata are treated as remote islands. Shipping costs vary depending on the location of the remote island, so Please comment before purchasing! Instant purchase without comment OK Price reduction comments ✖︎