Purchased from B&H New York in February 2024. Worn probably 10 times always in the office. They are in perfect condition. The only signs of wear is a small smudge on the case and I think a little bit of makeup on the right fabric of the headphones that I can clean but I haven’t looked into the care. I don’t wear these because I don’t like the fit as much as wearing the in the ear pods. Comes with the original charger. I threw the box away but I will package well. I’m not sure if there are serial numbers to show but let me know if you need proof.