Telephone apparatus; Telegraphs; Inter-communication equipment, namely, intercoms; PBX devices, namely, private branch exchanges; Radio telephony sets; Mobile phones for vehicles; Facsimile machines; Radios for ships; Answering machines; Walkie-talkies; communication apparatus, namely, headsets, headphones and ear sets for hearing protection for high noise level environments; Antennas; Antenna brackets; Radio transmitters; Radio receivers; radio transceivers; Bi-directional amplifiers; Radios for vehicles