Using this light - up sitter is easy. First, take it out of the box. Since the batteries are already included, you can directly activate the LED light and the song function. Place it gently on the top of your child's birthday cake. To keep it in good condition, avoid dropping it or exposing it to water. When not in use, store it in a dry and safe place. If the batteries run out, you can replace them easily with the same type of batteries. This way, you can use it again for future celebrations.