I purchased this a few years ago, but I've only worn it two or three times and stored it in the children's room. It stopped working once, so I had it repaired a while ago, but it has stopped again. It doesn't appear to have any noticeable stains, but there may be some discoloration or deterioration. Please refrain from purchasing if you are concerned. Shipping will be via Yu-Packet with simple packaging. Thank you.