Introduce children to coding with Jack, the fully programmable Code & Go Robot Mouse! Create a step-by-step path for Jack using the 30 included double-sided coding cards to provide a hands-on introduction to coding concepts. The mouse lights up, makes sounds, and features 2 speeds and colorful buttons to match coding cards for easy programming and sequencing. Use him alone or as a terrific addition to your Code & Go Robot Mouse Activity Set (LER2831), sold separately. Requires 3 AAA batteries (not included).