CEOTRONICS

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electronic communication apparatus, particularly for use in noisy environments, namely, apparatus for listening or for speaking consisting of microphones and earphones or headphones, including apparatus for listening or for speaking which is worn under protective headgear and/or protective clothing such as by pilots or air traffic controllers; listening and speaking apparatus consisting of microphones and earphones or headsets with speech buttons and/or electronic speech controls for transmission apparatus or for wire-connected speech apparatus; acoustic hearing protectors for minimizing or eliminating outside or extraneous noise or sounds for nonmedical use