Software for the development and operation of robotic devices, drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft; accessories for robotic devices, drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft, namely, batteries, battery chargers, remote controls, power supply adaptors, wireless signal range extenders, electronic device for controlling flight, and electronic device for video display; downloadable manuals for the operation and maintenance of robotic devices, drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft; flight simulators for aircraft; electronic navigational and positioning apparatus and system for robotic devices, drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft; electro-dynamic apparatus for the remote control of signals; data processing apparatus; computer memory devices, namely, computer memory hardware; computers; audio-receivers and video-receivers; sound recording apparatus; cameras; stands for photographic apparatus; electric batteries; downloadable music files; downloadable image files containing images related to drones, robotics, photography, and videography; downloadable multimedia file containing video relating to drones, robotics, photography, and videography; computer peripheral devices; altimeters; antennas and aerials; scientific angle measurement devices, namely, azimuth measuring instruments; flight controlling apparatus being remote controls for operating drones, unmanned aerial vehicles (UAVs), unmanned aerial systems (UAS), and remote control (RC) aircraft; automatic flight control and autopilot systems comprising computer hardware and software for controlling the flight of aircraft, unmanned aerial systems (UAS), drones, unmanned aerial vehicles (UAVs), and remote control (RC) aircraft; inertial measurement units comprising accelerometers and gyros for use in navigation and guidance systems; integrated circuits; radar apparatus; sonar equipment and parts thereof; speed checking apparatus being speed indicators and speedometers; laser speed detectors; motion detectors; laser guide instruments, namely, laser guide lights for visual alignment and positioning, not for medical purposes; optical lenses; measuring apparatus, namely, to measure altitude, location, speed, acceleration, orientation, light, sound, heat, magnetics, vision, and motion; motion detection sensors; electronic sensors, namely, optical sensors, audio sensors, and proximity sensors; stereoscopes; satellite navigational system, namely, a global positioning system (GPS); satellite-aided navigation systems; apparatus for transmission of communication; signal lanterns being luminous safety beacons; aerial antennas; acoustic sound alarms and alarm sensors