This is a Roland TR-707. It's a legendary rhythm machine, following the TR-909 and TR-808. I purchased it as a fully functional unit from Sofmap about 15 years ago. Among vintage equipment, it's a rare model that can connect via both MIDI and DIN SYNC. After purchasing it, I stored it without ever using it. I checked the sound and operation for this listing. For sound output, I confirmed the sound from the PHONE and each para-out using the demo sounds. The volume adjustment via the sliders also worked without any problems. I haven't checked the MIDI/DIN connections. For operation, I checked that each pad button produced sound, the sequence start/stop, the lamp lighting during sequencing, and the LCD screen display. The LCD screen appears dim to me. Please check the photos. Also, the battery compartment seems clean, with no battery leakage or rust. Accessories include the manual and AC adapter. The manual has tears and yellowing, but no pages are missing. The AC adapter works without any problems. Also, the photos are bright, so it's not very noticeable, but there are scratches on the edges of the unit and near the buttons (scratches around the volume sliders, between the start/stop buttons, and above the Roland lettering), so please understand this before purchasing. 【Important Notes】 ・Currently, there are no functional problems, but due to it being a vintage item and the occurrence of malicious cases such as parts replacement and returns after purchase, I will not accept returns, so please understand that it is no-claims, no-returns. ・It may be listed on other sites, so I may stop the auction midway. ・I may be in a different location from where the item is stored, so shipping may be delayed by 1-2 weeks depending on the timing. Thank you for considering purchasing this item after understanding the above.