Telecommunication and telephone apparatus and equipment including receivers and transmitters for electronic signals; telephones, mobile and cellular telephones, portable telephones; parts, fittings and accessories for telecommunication and telephone apparatus; hardware for the transmission and reception of audio and acoustic data; acoustic apparatus and instruments; acoustic conduits; acoustic couplers and connectors; acoustic earplugs; acoustic headphones and earphones; acoustic speakers; audio receivers; electric wires and cables; sheaths for electric cables; electric couplers and connectors; sound reproduction and transmission apparatus; sounding leads, lines, apparatus and machines; microphones; amplifiers; transformers and power supplies