Antennas; Batteries; Intercoms; Pagers; Aerial amplifiers; Aeronautical radio communication machines and apparatus; Amplifiers for wireless communications; Battery chargers; Broadband radios; Communications headsets for use with communication radios, intercom systems, or other communications network transceivers; Internet radios; Loudspeakers, headphones, microphones and CD players; Microphones for communication devices; Walkie-talkies; Wireless headsets for smartphones