Bone conduction headphones purchased in 2023. Used only a few times shortly after purchase and have been stored for a long time. The main unit and operation are in very good condition. Simple cleaning has been done. All accessories are shown in the photos. The included earplugs are unused and unopened. Please note that there may be minor scratches due to the item being used. Please purchase only if you understand this. *Operation has been confirmed, but returns and refunds due to initial defects or shipping problems are not accepted. Please understand this beforehand. If you have any questions, feel free to comment. We strive for prompt and courteous service. Thank you for your consideration.