Please be sure to read the following notes: Recently, there have been many cases where buyers do not confirm receipt of the product even after it has been shipped. If the receipt is not confirmed, the seller cannot receive payment. We kindly request that you purchase only if you can confirm receipt within 48 hours of the product's arrival. We apologize, but we will have to refuse future purchases from those who cannot comply. Thank you for your understanding. Product Description: miditech Pianobox mini. A GM sound module that can be charged via a USB cable. Includes a MIDI input cable, a USB charging cable, a simple instruction manual, and the original box. The main unit has minor scratches, but the LCD screen and its display are clean. I have confirmed that sound can be produced by connecting a MIDI keyboard (compatibility may vary depending on the keyboard; there have been reports of it not working in some cases) to the MIDI terminal and using the headphone jack. I have confirmed that the volume and REVERB buttons work. I have confirmed that the sound source changes when the PROGRAM button is pressed and the jog dial is used. Other operations have not been confirmed. It is a multi-functional device, so we cannot guarantee that all functions are working. Please understand. I do not have detailed knowledge of the equipment, so I may not be able to answer questions. Please be aware that this is a used item, so there will be some wear and tear. I have generally checked the item, but there may be oversights in the details. In such cases, please forgive me. Please purchase only if you understand that this is a used item. Please note that we cannot handle claims after arrival. Please understand that we do not ship overseas.