Directly wired to the power supply. No instruction manual. ・Since it is used, please check the photos carefully before purchasing. We will clean and disinfect before shipping. Please note that the actual item may differ from the photos. There may be some scratches and stains on the surface. We have other items for sale, so please take a look if you'd like. We have other products as well. Please take a look. We cannot guarantee operation, and we do not accept claims or returns after purchase.