Thank you for viewing! I've used it a few times, but I've gotten into other instruments and no longer have the opportunity to use it, so I'm putting it up for sale. 《Product Information》 【Brand】Roland 【Product Name】Aerophone 【Model Number】AE-20 【Included Items】Case, AC adapter, cover, and everything else shown in the images. 《Condition》No noticeable scratches or stains / Operation confirmed The instruction manual and case show some deterioration, but the main unit is in good condition with only minor scratches. I have confirmed the operation of the unit before listing it, but I will ship it with the batteries removed. Please prepare batteries yourself.