*: Best playmate - This robot is sensitive to your move, it will not annoy or attack you, the robot toy will do whatever it can to make you feel happy Multi control modes - It has two walking modes: Crossing obstacles mode and Follow mode. It can follow the little master like a small tail, or use it IR sensor to explore world Built by yourself - Kids can build their own robot by following the instruction, it can can improve parent-child relationship, parents can play with kids to organize this robot kit Great educational toy - Train kids hands-on ability, develop their creativity and intelligence, help them to learn about robot Require 4 AAA batteries (not included) Specification: Material: Plastic Color: Yellow Size Chart: Size(L x W x H): 375 x 235 x 78 mm/ 14.8 x 9.25 x 3 inch Package Includes: 1 x STEM Robot Kit