This is a brand new, unopened item. This is a high-quality earphone cable. It uses silver wire, allowing you to enjoy clear and powerful sound quality. It features a 4.4mm balanced audio plug. It is compatible with earphones with 0.78mm pins. With a cable length of 1.2m, it provides a comfortable listening experience. Recommended for those who are particular about sound quality. [Plug]: 4.4mm Balanced, Gold-plated [Earphone Side Pin]: 0.78mm [Wire Material]: Silver wire [Length]: 1.2m [Microphone/Remote Control]: None Thank you.