This is the KORG AX300G, a multi-effects processor for guitar. I bought it new in 1999, but I couldn't figure out how to use it and it's been sitting unused ever since. It was only used at home. I haven't used it in a long time, but I have confirmed that it works. The items included are the main unit, adapter, and sticker. Please purchase only if you understand that this is a used item. Immediate purchase is welcome, and I am not accepting price negotiations.