Robot Soldering Project Kit., Educational, Hobby, Robot shell comes assembled and a small 2 inchx2 inch circuit board needs soldering assembly.

Robot is an educational teaching kit.
The assembled robot can move forward, backward, make sounds, and blink.
Adjusting the component parameters (potentiometers) in the circuit can control the time and distance of the robot's walking. an Exercise how to accurately control the length of the robot's walking distance.

Power supply: 4.5V (3 AA batteries) Not Included
Robot size: 216*112*81