Includes the adapter. This is a used item, so there may be scratches and marks. The LCD screen display is good. The sound is good. This is the 24-bit version. Please note: Although this is a used item, we do not guarantee its operation. Confirmed operation: Demo song playback via headphones. Confirmed operation: Front panel pads and jog dial. Other operations have not been confirmed. This is a multi-functional device, so we cannot guarantee that all functions are operational. The adapter is genuine Alesis, but it is a 10V model. The device's input is listed as 9V, but it seems there are various versions of this product with input voltages ranging from 9-12V, so there shouldn't be any particular problem. I do not have detailed knowledge of the equipment, so I may not be able to answer detailed questions. Please be aware that this is a vintage used item, so it will have some wear and tear. I have generally checked the item, but there may be some overlooked issues. Please understand. Please purchase only if you understand that this is a vintage used item. We cannot accept claims after delivery. We do not ship overseas, so please understand.