This officially-licensed Big Bang Theory plush is guaranteed to make you feel better -just press the front paw to be serenated with Sheldon's sick-time lullaby "Soft Kitty." Sing along with your new companion: Soft Kitty, warm kitty, little ball of fur. Happy kitty, sleepy kitty, purr purr purr. The adorable kitty is made from polyester fiber and recommended for all BBT fans over the age of three. Batteries are included, so you simply need to pull the clear plastic tab from the battery compartment to get started. Keep this cute kitty healthy by cleaning the surface with a damp cloth (do not machine wash).