・YAMAHA. QY700. Operation confirmed. For sale due to equipment 정리 (seiri - organizing/sorting). ・There is a feeling of use such as dirt, scratches, and scuffs due to aging. ・I don't think there is any yellowing of the buttons. Reading and writing of floppy disks worked without problems. Each button also functions normally. Occasionally, the right-side number 7 key was slow to respond, but I processed it by pressing 5 and 6 and using the YES/NO buttons. There are no problems with music playback. I think it can be fixed with cleaning inside. Reading each part also functions without problems. No claims or returns except for cases where it clearly doesn't respond or no sound is produced. ・Due to smartphone photography, the color unevenness, condition, etc. may differ from the actual product. ・Used at home, no pets, no smoking. ・Set contents ・QY700. Main unit ・Yamaha AC adapter ・QY700 dedicated bag ・Instruction manual ・MIDI cable, floppy disk (used) 5 items. I would be happy if you could understand that these are used items. Please consider and thank you.