This item was used after purchase and then stored at home. It produces sound, but I do not have the expertise to assess the scale or other technical aspects. Please judge the overall condition from the photos. I will wipe it with a dry cloth and store it before shipping. Recycled cardboard will be used for packaging. We are looking forward to your purchase if you fully understand that this is a used item. Please refrain from purchasing if you are overly concerned about condition.