This is a used Roland D-110 multi-timbral sound module. As shown in the photos, there are scratches and dirt on the unit. The internal button battery has been replaced and the unit has been initialized. The following operations have been confirmed: ・No malfunctions of each switch ・Confirmed that audio output is produced during ROM Play performance in demo mode ・No scratchy noise from the rear SHIELD OUT, side PHONE OUT, and VOLUME ・Confirmed that audio output is produced via MIDI performance using MIDI IN 　※Due to specifications, audio will not be output even if MIDI setting 1CH is input; audio output has been confirmed on MIDI 2CH-10CH ※Reference information Initialization: Press and hold [WRITE/COPY] while turning on the power Roland D-110 Test Mode: Press and hold the [VALUE DOWN] button and the [ENTER] button while turning on the power