Black Anker Soundcore wireless earbuds charging case

I found a black Anker Soundcore wireless earbuds charging case this afternoon behind the Starbucks on 10th Avenue South near the Holiday Village Mall in Great Falls. It’s about the size of a small deck of cards, matte black with a few light scratches along the lid. The Anker logo is in white on top, and there’s a faded blue sticker with the initials 'P.P.' on the inside of the lid. It seems recently used, and there’s no charging cable inside. If this belongs to you, give me a quick detail (last place you used it or a distinguishing feature) and I’ll arrange a safe return.