1. Material: plastic 2. Power supply: both the remote control and the dinosaur use AA batteries (not included) 3. Ability training: emotion, vision, intellectual development, crawling, manual brain, grasping, sensory, hand-eye coordination 4. Built-in multi-function adjusting remote control, the toy is more intelligent 5. Simulate the roar of dinosaurs, double the experience while playing games 6. With beautiful songs, it is more playable 7. The legs, tail, waist, head and other multi-joint classes can swing 8. Button to remove the tail, easy to remove, more convenient to carry 9. Weight: about 875 grams 10. Size: 20x44x18 cm