Every step of Wow World's radio controlled 18"L Brachiosaurus can be seen, heard and felt as it walks and it roars! Sound effects thunder with each step, the eyes light up, and the head moves around like a real dinosaur! As the Brachiosaurus 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! The tail requires adult assembly.