NKOK Wow World Toy Figure - R/C T-REX Try-me walks, roars, head moves As the T-Rex roars, the mouth opens up wide showing off the ferocious teeth. Use the included remote control to control the dinosaur forward, and to make it roar on command! Use the included remote control to control the dinosaur forward, and to make it roar on command! The tail requires adult assembly For ages 4 and up