Acoustic sound alarms; Audio- and video-receivers; Camcorders; Computer game software; Electro-dynamic apparatus for the remote control of signals; Electronic agendas; Electronic and optical communications instruments and components, namely, optical transceivers; Hygrometers; Metal detectors for industrial or military purposes; Modems; Optical lenses; Remote control telemetering machines and apparatus; Smart watches; Teaching robots; Telecommunications transmitters; Transponders; Video screen...