Suitable for children from 4 years old, this set includes 3 emergency vehicles that can be assembled to create a mega T-Rex. Once assembled, the vehicles transform into a giant T-Rex with sound and light effects, boasting 23 points of articulation for lifelike movement. The toy offers two game modes - Dinosaur mode and Vehicle mode - which activate automatically after manual transformation, featuring different voices and animations based on the selected mode. Included are over 60 realistic dino-related sounds and phrases, along with light effects, sound volume adjustment, and automatic shutdown functionality. The toy operates with 2 LR6-AA batteries provided.