This is a pendant-type emergency whistle, convenient to carry. The package serves as an ID card where you can write your personal information, which can be stored inside the whistle body for use in emergencies. This item is highly recommended as a preparation for sudden disasters. It was distributed by the neighborhood association, but I don't need it, so I'm giving it away to anyone who wants it. Please note that this item has been stored by a private individual, so no claims or returns are accepted m(_ _)m