Aerials; Intercoms; Air traffic control radio equipment; Antennas; Cell phones; Cellular phones; Communications computers; Earpieces for remote communication; Expandable screen smartphones; Microphones for communication devices; Mobile phones; Mobile telephones; Portable emergency intercoms; Portable telecommunication instant messaging devices; Radio telephones; Radio transmitters and receivers; Sound filters made of cloth, for radio apparatus; Telephone apparatus, namely, intercoms; Vehicle ...