This is a cabinet simulator made by Darkglass. I used it once live, but the sound direction didn't suit me, so I'm selling it. There are no operational issues, but it is a used item, so it has a corresponding amount of wear and tear. Please refrain from purchasing if you are concerned. In addition to the outer box, the items shown in the first photo are included. If a firmware update is required, please do so by the buyer. Thank you.