How Magical! A smart Robot Mouse tracks a back line using a photo interrupter for its eyes. How Funny! Create a twisting and turning road layout yourself with black tape on a white background. See how it tracks the black line to find the target.

Features: Sound acti- vated, programmed IC, two sets of gear motors (unassembled), power source 4 “AA” batteries (not included), uses 3 photo interupters to detect a black line