Thank you for viewing. This is a wireless earphone collaboration model of Kaiju No. 8's Soshiro Hoshina x Onkyo. It was sold by pre-order and is no longer available. After purchase, I opened the box once to check the contents. The main unit is unused. Although it is new, please refrain from purchasing if you are nervous, as it is stored personally. Thank you. Kaiju No. 8 Kai 8 Soshiro Hoshina Collaboration Earphones Onkyo