Disney Monsters allows you to have fun with your favorite characters from the movie Monsters, Inc. Slide the lever on the back to move Mike Wazowski's head and arms. The device makes various sounds, including Mike's signature laugh. The package includes a Proof of Purchase document that can be used for warranty purposes. Please note that the device requires 3 "AAA" alkaline batteries, which are not included in the package. To install new batteries, use a Phillips screwdriver to loosen the screw in the battery compartment door and follow the instructions in the manual.