Thank you for viewing. This is a BOSS KATANA:GO headphone guitar amplifier for sale. I used it a few times at home, but I stopped using it, so I've been storing it in a dark place. * Operation is not a problem. (See image) * Includes only the main unit and charger. Please note that the box and instruction manual are not included. Please refrain from purchasing if you are concerned, as it has been stored by a private individual. Thank you.