Thank you for viewing. The item is the YAMAHA DX7 Voicing Program YRM-13. Before listing, I confirmed the display and operation. I also confirmed synchronization with the DX7, and that the parameters move, so it may be a valuable item. However, please understand that this is a used item due to its age. Please judge the condition and appearance from the photos. - Brand: YAMAHA - Model Name: DX7 Voicing Program - Model Number: YRM-13 - Format: MSX Thank you for reading.