I bought a used set of Bose QC (Quiet Comfort) and they came with two removable batteries and a charger, all packed nicely in a really small case. I replaced t

I bought a used set of Bose QC (Quiet Comfort) and they came with two removable batteries and a charger, all packed nicely in a really small case. I replaced the foam for $7 at some point but they still worked nicely last time I checked despite being 7 or so years old now.