Purchased on Amazon approximately 10 years ago for about 19,535 yen. This is a set including the main unit and case as shown in the photos. I think it has a good sound that you can't experience with wireless, and it's worth the price. The hard case has scratches on the surface and corners, but the main unit has no noticeable scratches or stains. The ear tips have been replaced with third-party L-size ones. I am selling it because I mainly use wireless earphones. Series...HA-FX Series Model...HA-FX7G