Line Sensing Robot Toy, Tracking Robot Interactive Toy, Follow The Black Line Toy 1ML A scientific gift for children: The robot can walk along the black line, and children can set the track for the robot. The robot's movements will surprise children, children to explore the principles behind it, and stimulate children's interest in science.
Optical sensing principle: There are two optical sensors at the bottom of the robot to correct the direction of the robot's movement, flexibly turn, and follow the black line.
Various ways to play: You can set a flat track for the robot, or roll the paper into a ring and let the robot the ring paper. Multiple robots can compete the same track, or two robots can opposite directions for sumo wrestling.
Replaceable batteries: The robot requires 4 button batteries, the product comes with 4 batteries, and you can also buy them in other stores.
tips: The thickness of the line should be between 0.4-1.0 cm (0.16-0.39 inches). 0.6 cm (quarter inch) is best, and there should be no sharp corners. If the car is placed elsewhere, it will drive in circles until it finds a black line to follow.
Packing list: 1*Line following robot
Material: plastic
Label: Yes
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