This is a set of the Fiio K11 and the FX-AUDIO Petit Susie & Petit Tank. The K11 was purchased on Amazon in November 2023. The Petit Susie & Petit Tank were purchased on Amazon in January 2025. They were working without any problems until the time of listing. Condition: 　Box has scratches and dents. 　No noticeable scratches or stains on the main units. Accessories: 　All included. Cleaned with alcohol wipes. I think they are in relatively good condition, but they are used items stored by an individual, so please refrain from purchasing if you are sensitive to such things. Returns are not accepted to prevent product substitution. The Petit Susie & Petit Tank do not have boxes, so they will be carefully packaged before shipping. Please purchase only if you understand the above.