Microphones for wireless devices; [ Metal detectors; Single-channel radio communication machines and apparatus for fixed stations; High-frequency apparatus, namely, high frequency switches; ] Repeaters for radio and television stations; [ Radio and television aerials; Radio transmitters; Radar apparatus; ] Microwave antennas; Modems; Antennas for wireless communications apparatus; Carrier frequency repeaters; [ Direction finders, namely, compasses; Intercommunication apparatus, namely, teleph...