There is no adapter, but it can be used with batteries. There is a scuff on the back of the side (3rd photo). I think it's clean, but there are no other noticeable scratches or stains. International Buyers - Please Note. These charges are the buyers responsibility.The item "BOSS ME-50 Multi Guitar effect pedal Guitar Multiple Effects Processor FedEx" is in sale since Sunday, February 28, 2021. This item is in the category "Musical Instruments & Gear\Guitars & Basses\Parts & Accessories\Effects Pedals\Multi-Effects". The seller is "okozukainomoto" and is located in Japan. This item can be shipped worldwide.