YAMAHA DTX-MULTI 12, model DTXM12. I received this from a friend. The basic functions of the pads, knobs, etc. are working without issue. The main unit and power adapter are included. Thank you for your consideration. Free shipping via Rakuraku Mercari delivery service. I cleaned it as much as possible, but there may still be some remaining dirt. Please refrain from purchasing if you are concerned. As time has passed since the purchase, there may be some crackling when turning the knobs or moving the jacks. Also, since this is a used item, please understand that it is non-refundable and non-returnable. No complaints, no returns.