Activate a switch and watch this T-Rex walk and hear it roar. Consider using the Jelly Beamer, Big Beamer, or Mini Beamer wireless switch with the Original Receiver (switch and receiver not included) for wireless switch access. This toy is permanently adapted and requires one switch (switch not included). Requires three AA batteries (batteries not included). Color of toy may be different than what is shown in photos on this page. Choking hazard - small parts. Not for children under 3 years old.