A reed case that sterilizes with UV light. There are also claims that it improves the condition of the reeds, among other things. Personally, I feel like my reeds have lasted longer. I'm selling it because I've been using resin reeds lately, so I don't use it as often. The box, case, main unit, and instruction manual are included. Note: Contact problems often occur during charging, but you can charge it by gently pushing the connector up from the bottom as shown in the last image. It's easier if you put something underneath or wrap the cord.