Posted in Product description: "Just let insert a AA battery and put on the shelf, on your desk or on the door, waving to operate. The happiness is then already its way to you! The battery is not included."
Caution: It's still a solar-powered cat. There is no battery compartment !!! So if you want to place them in a dark place, will not be happy with the cat. No "winkewinke" without the sun!
