This DIY robot kit can be powered by the sun. The robot can walk, crawl, roll and float in the direct sunshine, which offers your child practical experience of working with green technology. In addition, This upgraded stem robotics has a built-in battery compartment which below the solar panel for storing batteries, children can also play with the robot toy by using 1 pcs AAA battery for power supply, even on rainy days or night.(Battery not included)
