Only 5 were made. 3 have already been sold. This is the last unused item. There are 10 small dents in the photos. Photos 12 and 13 show marks from identification stickers. Photos 18 and 19 show the adjuster is included, but not recommended as it degrades sound quality. This item is only listed on Mercari. Please be aware of other sites if you see it listed elsewhere. Photo 19 is not for sale.