Thank you for viewing. This is a projection light keychain purchased at a store over 20 years ago. I haven't used it much since I bought it, and it has been stored at home. It's a cute light that projects Angel Blue when turned on. It doesn't seem like the battery can be replaced. Please understand that this item has been stored at home for a long time and is a used item. Also, please refrain from purchasing if you are concerned about minor details. Thank you.