Roland PMA-5 GS Sound Module (PERSONAL MUSIC ASSISTANT). Internal battery replaced (holder type). Includes dedicated pen. This is a used item, so there are some scratches and marks, but it's in fairly good condition. The LCD screen also has some scratches, but it's reasonably clean. The screws holding the cover have some rust, but there's no problem with use. There are some scratches and marks on the surrounding cover. The included touch pen is believed to be the original, but it's a little loose when inserted into the main unit. Please understand that I don't have further details. I have tested the demo data playback with my own power adapter (please note that the adapter is not included) and confirmed the sound through headphones. I have also confirmed the operation of the front buttons. Battery operation has also been confirmed (batteries are not included). I connected an external sequencer to the MIDI terminal and confirmed song playback through the headphone jack. Other operations have not been confirmed. If the LCD screen enters calibration mode, be sure to touch the correct points with the pen (the right point is the upper right corner, but the left point is the very bottom of the lower left corner. Many people mistakenly press the point above it and say "calibration is not possible," so please be aware). I do not have detailed knowledge of the equipment, so I may not be able to answer questions. Please be aware that this is a used item, so there will be some wear and tear. I have generally checked the item, but there may be oversights in the details, so please forgive me in that case. Please purchase only if you understand that this is a vintage used item. Please note that I cannot accept claims after arrival. I do not ship overseas.