Roland, this is a listing for the SC-88STPro sound module. Please note that the main unit is the only item included. This model is a simplified version of the 88Pro, omitting the display and buttons, but it has 32 parts, a maximum polyphony of 64, 1117 tones, and 42 drum sets, so the specifications are comparable to the 88Pro. The main unit is a used item, so there are some scratches and marks, but it is in relatively good condition. I confirmed playback of a song by connecting an external sequencer to the MIDI terminal (A) and using the headphone jack. I have confirmed operation with my own adapter, but the adapter is not included, so please be aware of this. I confirmed that the volume knob works. Other operations have not been confirmed. Due to its many functions, I cannot guarantee that all operations are possible, so 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 from a previous era, so there is some wear and tear. I have generally checked the item, but there may be oversights in the details, so please forgive me. Please purchase only if you understand that this is a used item from a previous era. Please be aware that we cannot accept claims after arrival. Please note that we do not ship overseas.