Paging apparatus; Telephone sets; Telephone apparatus, namely, intercoms; Headphones; Portable emergency intercoms; Walkie-talkies; Earphone accessories, namely, earphone cases; Smartphones; Earphones for cellular telephones; Headsets; Smart earbuds; Apparatus for point-to-point communciations in the nature of telecommunications transmitters; Apparatus for point-to-point communciations in the nature of antennas
Electrical and Scientific Apparatus