OurPets Mouse in Pouch is the ultimate game of cat and mouse! By peaking your cat's curiosity, your cat will be relentless in their pursuit of the mouse unpredictably scurrying around inside of the pouch or on its own outside of the pouch. It's a mystery where the mouse will go next and that is just what cats love! Unpredictable mouse stimulates cats hunter instincts. Patented RealMouse sound mimics a wild mouse. Play with the mouse inside or outside the pouch. Provides your cat with fun and healthy play. Requires 2 AAA batteries (not included).