This is a representative earphone from Noble Audio, featuring 10 BA drivers on each side. It still performs well even now, producing excellent sound. I believe it's an earphone with the ability to compete with today's high-end earphones. This listing includes only the main unit and the cable. Since this is a custom IEM, please consider purchasing it with the assumption of reshelling. (Returns or cancellations due to reasons such as not fitting your ear shape are not accepted) Sound output has been confirmed, and there are no operational issues. Used only indoors, there are no noticeable scratches, but please understand that this is a used item. The items included are all shown in the photos. Please refer to the photos for the condition of the main unit. As this is a used item, please forgive any minor scratches or stains that may have been overlooked. Please refrain from purchasing if you are overly concerned about the condition, as this is a used item. If you have any concerns about the product, please ask all questions before purchasing. After purchase, we assume that you have agreed to all terms, so please refrain from asking questions after purchase. Returns are not accepted after the product has been shipped to prevent swapping.