Trademark Games Mini Whack It Toy Game Keychain With Sound And Lights 100% Plastic Features include:Travel sized, Sound and mute functions and 3 difficulty levels - 3 speeds Life energy meter: Off button, Plastic construction, Requires three LR44 Batteries (included) Dimensions: 0.75" x 2.875" x 1.875", for ages 5+ years Includes retail packaging