Operation confirmed, this is an item for sale of the main unit only. Due to the strong commitment to sound by the owner of F-Sugar, it operates on two 9V batteries and is unmodified from its original state. The item will be wrapped in cushioning material and shipped via Mercari delivery in a cardboard box. Please understand that this item has been stored at home. We kindly ask for your purchase if you can accept this. Returns and exchanges are not accepted after purchase.