King Lizard Robot is modeled after Australian Frilled Lizards. When these lizards are surprised or threatened they exhibit a pretty spectacular display. First it's the wide open, hissing mouth with sharp little canine teeth. Then comes the big reveal, the neck frills jump from limp to frightening in a snap. This aggressive behavior is truly a bluff and if you don't run away, the lizard will.The King Lizard Robot functions with two AI modes, " Chase" and " Escape" . With the 2 mode switch, when the infrared (IR) sensor is activated in the " Escape" mode, the King Lizard Robot will act startled. The frill will deploy, jaws gape and LED eyes blaze all before scurrying away to a safe distance. When the IR sensor is activated in the " Chase" mode, your King Lizard Robot will bluff the threat, you, with an energetic frill display. If your King Lizard Robot does not sense danger, it will follow you like a pet.Best suited for young builders age 10+. Requires 4 " AAA" batteries (not included).TEACH TECH™ features robotic kits that explore renewable energy and coding. TEACH TECH™ follows the Learn By Doing® philosophy found in all of Elenco's products. With TEACH TECH™, kids can enjoy hours of educational fun while boosting their confidence and critical thinking skills. Products in this line appeal to anyone who enjoys using their hands to build, tinker, and bring to life their creations with movement, coding, and programming. Forward-thinking kids can explore alternative energy with kits that highlight solar, hydraulic, or wind power.Developed in 2019 with a fundamental focus in STEM education, the TEACH TECH™ product line is comprised of three categories:• Coding- These build-it-yourself robots teach children the fundamentals of robotics and coding, while incorporating problem-solving and creativity. Tobbie II and Mech-5 are ingenious coding robots that will keep children challenged and engaged, while still having fun.• Green-Energy- With alternative energy playing such a pivotal role, there is no better time than now to start children on the path to learning basic concepts behind these technologies. All TEACH TECH™ Green-Energy robots are powered by either water, wind or sun, so there are no batteries required.• Mechanical-Robotic Kits- In the classroom or at home, Mechanical-Robotic Kits have a big impact on STEM education. Learn about robots, and have fun doing it. There are numerous projects, activities and tasks that these robots can accomplish. The possibilities are as limitless as your imagination.