Roland sound source module JV-2080 with expansion board, built-in battery replaced, maintenance item, working. This is the age of software, but the sounds of hardware and boards are still very attractive.The exterior has some minor scratches and stains, but it is clean for its age. The internal battery has been replaced and the terminals have been cleaned, so it is in good working order. I have checked the sound output via midi, and the buttons can be operated. Headphone and line out on the rear panel both play well. This is an industry-standard, high-quality sounding JV module used by professionals. SR-JV80-98 EXPERiENCE 2 SR-JV80-11 TECHNO The items on display are the main unit and AC cable. If you have any questions please leave a message. If that, please let us know within 3 days you got the item.