Create a step-by-step path for the Programmable Robot Mouse using the 30 double-sided coding cards to provide a hands-on introduction to coding concepts. The mouse lights up, makes sounds, and features 2 speeds along with colorful buttons to match coding cards for easy programming and sequencing. Includes Activity Guide. Now, enjoy extended playtime with our rechargeable feature, eliminating the need for constant battery replacements. Use with the Robot Mouse Coding Activity Set (LER 2831) for more play options, learning opportunities, and fun! Mouse measures 4″L and is now rechargeable for enhanced convenience.