Neon Nightlife Men's Light up Gorilla Mask Battery pack takes 2 AA batteries and has 3 settings: Full On, Slow Blink and Fast Blink Battery pack can clip to anywhere from the waist and up, it can easily be clipped to your belt or placed in your pants pocket Mask light will remain bright for up to 24 hours per set of batteries We offer a 90 day warranty on the product. If for any reason the mask breaks under normal usage, we will replace it within 90 days. Perfect for Halloween, Costume Parties, Masquerades, Mardi Gras, Rave Festivals, Carnivals, Gifts, and more