This is the BOSS OverDrive OD-3. After opening, I checked the sound a few times at home, but I haven't used it otherwise. I think it's in very clean condition. I'm selling it to organize my equipment. I have confirmed that it powers on. It's in clean condition because I haven't used it much, but it is a used item, so please consider this before purchasing if you are concerned. Also, no returns or refunds will be accepted.