★ Guaranteed by the Seller ★ If it breaks within a year: Exchange for a new, unused one for an additional 2500 yen! This is a genuine product, so you can request repairs or exchanges from the manufacturer. However, if purchased from a flea market app, you may not be able to receive warranty service, or you may be charged for repairs, or it may take a long time to get the product back. Therefore, when you purchase from me, I will make a note of your Mercari nickname and the date. Once confirmed, I will exchange it for a new one for an additional 2500 yen! No individual price reductions. ★ Authentic Adrance Product ★ To check for power and operation, I have used the cord to charge it once. Therefore, the cord has been used, but the main unit is new and unused, and has not touched hair or scalp, nor has it been wet, so please rest assured. Please refrain from purchasing if you are overly concerned about details. Please note that I do not keep the original receipt. In case of initial defects, I will exchange it for a new, unused one. (I don't think there will be any initial defects since I have checked the power.)