Mobile computers; batteries; battery chargers; batteries and battery chargers; USB hubs; USB cables; micro USB cables; electrical power supplies; circuit breakers; circuit breakers and circuit closers; electrical connectors; power connectors; electric cables; electric sensors; electronic controls for motors; electronic servo motor controllers; optical sensors; electric couplings; downloadable manuals for electronic devices; downloadable manuals for robotics; downloadable manuals for robots; downloadable manuals for robot components; downloadable software for electronic systems; downloadable software for electronic components; downloadable software for robotic systems; downloadable software for robot components; remote controls for robots; remote controls for robot components; remote controls for electronic devices; robotic kits for making robots for personal, educational and hobby use; robotic kits for making robots for personal, educational and hobby use consisting primarily of robot construction building elements; personal, educational and hobby-use robot construction building elements; personal, educational and hobby-use robot construction building elements, namely, programmable on-board electronic control, motors and sensors, remote controller, computer software and manual for designing and remotely controlling motorized robots, and electronic computer interface for controlling motorized robots; downloadable computer software for programming, controlling and managing robots; recorded computer software for programming, controlling and managing robots; electronics devices; electronics components; downloadable manuals in the field of robotics; electrical switches; local switches; touch sensor; distance sensors; encoders; light emitting diodes (LEDs); electronic controllers for robotics devices; circuit boards