Thank you for viewing. This is a ZOOM guitar multi-effects processor. Perfect for practicing guitar. I used it only a few times after purchasing it, but I'm selling it because I no longer use it. I have confirmed that it powers on, but I don't have a guitar on hand, so I haven't checked the finer details of the sound. Please be aware of this. Model Number: G2.1Nu Included: Instruction manual, adapter, CD-ROM Thank you.