Top features:- Astrobot characters deliver an entertaining space-themed story - Five Robotic servo motors create life-like movements - Infrared sensor detects objects Astrobot charactersThe Ubtech Jimu Astrobot Kit features Astrobot characters and an entertaining story to make coding mastery fun for kids. It's a great addition to STEM learning. Your child will have hours of fun building and programming different kinds of robots, with a humanoid robot, an anthropomorphic wheeled vehicle and treaded mobile robot with grab and lift action to choose from.Five Robotic servo motorsThe Astrobot characters in the kit are powered by five robotic servo motors to give them life like movements. Imagine the sense of mastery this gives your child, as they experience the compelling ways to learn about programming and putting electronics together.Infrared sensorAn infrared sensor detects objects and keeps the Astrobot from bumping into things as it moves around. This means your child can enjoy hours of play without the frustration of obstacles or the need for a large play area. This proves very useful in the home environment and adds to the sense of mastery and fun while learning.