This is a YAMAHA QY70 sequencer. It has been tested and is in working order. The included accessories are shown in the photos. A separately sold dedicated adapter is also included. It is currently functioning without any problems, but there is some discoloration and scratches due to aging. Please understand that this is a vintage item before purchasing. Please refrain from purchasing if you are overly concerned about these details. *The backup battery has been replaced. *Due to aging, the sponge in the battery cover may deteriorate and shed particles.