Thank you for viewing. I am selling a YAMAHA rack-mount sound module, the MOTIF-RACK ES. I purchased this item new when it was first released. I have confirmed that both the main output and the headphone jack produce sound without any problems. The wheels and buttons are also responsive and function without issue. The front panel has no scratches, but there are some dirt, scratches, and minor rust on the top and bottom. Please check the photos. The included accessory is the power cable. You can download the manual from the YAMAHA website. This is a used synthesizer that is 21 years old since its release, so please refrain from purchasing if you are seeking perfection or are overly concerned about condition. No claims and no returns are accepted. If you agree with the product condition and the above content, please consider purchasing. The following is a product description from support AI: The YAMAHA MOTIF-RACK ES is a tone generator that provides a wide variety of sounds. - Brand: YAMAHA - Model Name: MOTIF-RACK ES - Function: Tone Generator - Volume Control: Yes - Headphone Jack: Yes - Standby Function: Yes Thank you for viewing.