Lost black wireless Bluetooth headphones with a small scratch on the left earcup and a white charger case with a chip near Cambridge library.

I lost my black wireless Bluetooth headphones near the Cambridge library last Thursday. They have a small scratch on the left earcup and the charger case is white with a slight chip in the corner. I was sitting on a bench to enjoy my music, and when I got up to head inside, I must have left them behind. If anyone finds them, I would really appreciate getting them back!