This is a listing for a WindCore WZ7100 Workman Heater Vest, size M (without battery). To ensure fair purchase for everyone, we do not accept price negotiations. To prevent any issues, we do not offer dedicated listings or holds. Even during comment exchanges, we will prioritize the person who makes the purchase. We do not ship on Saturdays, Sundays, and holidays. We will fold the item for packaging during shipping. I purchased this in January of this year and wore it once without a battery, then stored it. I do not have a battery, so I have not been able to confirm the heater function. It's not that old, but it is a used item. There may be oversights. We are selling it as a junk item, "as is," so we ask for no claims and no returns. We also do not offer international shipping or issue receipts. We will use recycled packaging materials. Please consider the above carefully only if you understand and agree to these terms.