Thank you for viewing. This item is a MOGAMI 2893 4-core cable with ground-isolated wiring. The cable length is approximately 2m, and it uses screw-type phone plugs compatible with both 3.5mm and 6.3mm. The urethane foam that was inside the ear pads has been removed. The original thin leather on the headband had deteriorated, so a cover that wraps around and fastens with a zipper has been attached. In addition to the headphones themselves, there is a genuine pouch and spare ear pads (compatible). The sound is clear, so I don't think there are any problems, but this item is a modified product made by an individual, and it has been a considerable amount of time since its manufacture. There may be overlooked scratches or stains, so it is sold as-is. Instant purchase is, of course, OK. Thank you.