Sound output has been confirmed. There are 2-3 small dents, but it seems to be in relatively good condition with no problems in use. There is no warranty, but it was purchased new from the authorized YAMAHA store in Yotsubashi, Osaka. The original case had straps attached for carrying, so there are several screw holes. There are no problems with use. If there are any other areas of concern, I will add photos, so please let me know. This is a used item, so there may be some minor scratches. Please refrain from purchasing if you are sensitive to this. I am considering a discount, although I'm not sure if I can meet your expectations. Please feel free to ask any questions.