Robot sumo solarbotics production that meets a standard mini sumo competition that can be assembled in a variety of forms. Specifications: - Power supply 9V (Battery 6AA) - Using GM8 gear motors - Using IC L293D motor driver - Equipped with 4 opto-reflector to the sensor edge - Can expand up to 5 sensor edge when using the board microcontroller - Includes 2 infrared sensors for object detection or opponents - Using chassis / frame steel