With the Adult Inflatable T Rex Costume with Sound you can take ferocious fun to the next level! Watch your friends run in fear as you let the T Rex Costume with sound do the roaring for you. Be Tyrannosaurus Rex straight out of the Jurassic Park movie and watch havoc and laughter break loose. A clear vinyl by the neck area allows for visibility so you can catch your prey with ease. T Rex Dinosaur Costume includes an inflatable jumpsuit with gloves, shoe covers, a battery operated fan and sound chip. Fan requires 4 AA batteries (not included).