I purchased this used item from a musical instrument store in Osaka three years ago. At the time of purchase, the instrument store performed maintenance (adjusted the LCD screen contrast, trigger switches, and measured the remaining battery life for the internal memory, which was about 70% full). I haven't used it much since I bought it. I didn't have any problems when I used it before, but since it's a complex product with many detailed functions, I haven't been able to test everything. Please understand that this is being sold as-is. The original box is not in good condition. I am a non-smoker, and I do not have any pets. The item has never been taken outside. I will not accept price negotiations. Please refrain from purchasing if you are overly concerned about details. Please do not purchase if you need a lot of time to provide feedback after receiving the item. Returns are not accepted to prevent product substitution. If you have any questions, please ask before purchasing. I will not be able to answer questions after the purchase, so please understand. Thank you for looking. #Elektron #elektron #Monomachine #monomachine