■ Item Details PCCITY 120cm Single Crystal Copper Balanced Replacement Cable for SONY MDR-1A series, 3.5mm 4-pole, 4.4mm 5-pole, tested and in like-new condition. I've only used it a few times since purchasing it, and it's been stored away since then. It should work with the MDR-1A series. You can definitely tell that the sound becomes clearer when using a balanced connection. ■ Notices Thank you for viewing my listing from among many others. I try my best to provide detailed information about the product condition, but please feel free to ask any questions you may have. The condition is based on my personal subjective assessment, and please understand that the item has been handled by a person. If you are a highly sensitive buyer or are not satisfied with the product description, please refrain from purchasing. In the unlikely event that the delivered product differs from the description, or if there are any problems with the delivered product, please let me know. I will take responsibility and respond accordingly. Combined shipping is welcome. You can save on shipping costs, so please feel free to ask. (Some items may not be eligible depending on size) We reuse packaging materials. We use recycled packaging materials, so the appearance may be a little rough, but we strive for sturdy packaging.