Antennas; Batteries, electric; Chargers for electric batteries; Cordless telephones; Frequency meters; Intercoms; Mobile phones; [ Portable media players; Radio receivers and transmitters; Radios; ] Radiotelephony sets; [ Reconfigurable processors for use in wireless communication handsets and network equipment in the field of wideband communications; ] Relays, electric; Smartphones; Walkie-talkies