Multifunction Rhythm Machine, BOSS DR-550MKII - Model: DR-550MKII - Brand: BOSS - Function: Rhythm Machine - Operation Buttons: Start, Stop, Tempo, Level, Voice, and other operation buttons I purchased this several decades ago, so there are some scratches, but the body is not cracked. Please refer to the images for the condition. (I will provide additional images if needed) 【Operation Check (Confirmed with adapter and batteries)】 - Power turns on. - I confirmed that sound comes out from the phone, L, and R panels on the back. - I have not checked the operation of TAPE SAVE/LOAD and MIDI, as I have never used them. - No manual - No adapter - Box included (damaged)