Interactive Intelligent Toys for Child: In the standby mode,touch the tail of the pet dog, it will bark ,and the eye light chagnges with the sound and move forward and interact with you. It can be a great toys for kids,it could walk, slide, move forward, move backward, singing, snore or bark. High Quality Materials: The smart toys dog is made of high-quality plastic with smooth surface, it wont hurt kids hands when play it.The robot dog use 2*1.5V AA batteries (Not Included). Any further problems, be free to contact us and we will try our best to solve the problems for you! Strong Functions: The toys DIY magic pet dog can applause control robot dog, following via sensing, RGB light, action simulation, realistic barking, yawning and snorting in the sleep mode, perfect stem toys for boys and girls age 3+. DIY Stem Toys: DIY smart robot pet dog improve your child's imagination and hands-on ability ,Training kid's ability to think independently, solve problems with hands and brain. It is a perfect science toy for 3 4 5 6 7 8+ boys and girls.