This is a limited prototype cable, the NU-3, from wagnus. It features a 2.5mm 4-pole gold-plated plug and Custom 2pin type (0.78mm) connectors. The NU-3's concept, "more musical," "more energetic," and "more dramatic," can be felt directly with this cable. There is some peeling of the insulation, but I believe it does not affect the sound quality. (Deep check performed by wagnus). Please refrain from purchasing if you are concerned as this item has been handled by a person, or if you are looking for a perfect product. Also, please refer to the images for the presence and degree of minor scratches, etc. I will basically ship within one day of purchase. If you have any questions, please feel free to ask. Instant purchase is available.