Manufacturer: YAMAHA Model Number: YEP-321 Key: Bb [Item Condition] Parts are missing, so the condition hasn't been confirmed. However, it's still playable if you buy the missing parts. It seems like it could be used a lot. [Included Items] Main unit Case As shown in the pictures! Please ask any questions in the comments! Please understand that this is a used instrument, and refrain from purchasing if you are concerned about the details of its condition. Since this is a used instrument, we cannot provide a warranty. Thank you for your understanding!