This is a Behringer RD-9 drum machine. It was used in a non-smoking, pet-free environment. It produces a very good sound. The items for sale are the main unit, power adapter, quick start guide, and original box. Operation has been confirmed, but due to its many functions, not all features have been checked. Therefore, please refrain from purchasing if you are sensitive to imperfections or seek perfection. This is a used item, so returns and refunds are not accepted after purchase. Please understand this beforehand. Thank you.