This is the 100-piece construction set that lets young paleontologists build, code, and control their own fearsome robotic T-Rex pet. The special wireless unit enables kids to control the bot in real time or write and save sequences of commands it will perform at the push of a button without an app or separate devices. With two motors and a flexible tail, the T-Rex can move in all directions, as well as light up its eyes, chow down food, and play sounds. In guardian mode, its infrared sensors identify intruders which prompts it to unleash a ferocious roar. The process of assembling and coding the bot builds STEM skills as young engineers gain a clearer understanding of how robots work. Includes a screwdriver for assembly, stickers for decorating, and detailed manual. Requires six AA batteries. Ages 8 and up.  Updated dimensions: 11 1/2" H x 16 3/4" W x 3 1/3" D. (2 1/2 lbs.)