9 Scientific apparatus and instruments, namely, electronic wave generators, wave sensors and wave analyzers; electronic devices for the generation, measurement and analysis of audio signals, namely, audio analyzers; surveying apparatus and instruments, namely, electronic analyzers of acoustical waves and loudness; optical apparatus and instruments, namely, electronic analyzers of optical and visual signals; measuring apparatus and instruments, namely, electronic equipment for measuring acoustical, optical and visual signals as well as physical body reactions to psychic and physical stimulus for non-medical purposes; teaching apparatus and instruments, namely, electronic wave generators, wave sensors, wave analyzers; electronic devices for the generation, measurement and analysis of optical signals and audio signals, acoustical waves and loudness; electronic equipment for the display of loudness and acoustical frequencies for the reproduction of sound and images; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electrical conductors, electrical controllers, electrical switches; apparatus for recording, transmission or reproduction of sound or images; data processing equipment and computers; computer software for research and analysis purposes, namely, software for the evaluation and analysis of acoustical information and information transported by the human voice, software for the scientific and economic evaluation and analysis of human emotions and physical reactions, software for emotional and psychological profiling and compatibility; computer servers for web hosting