Smartphones; Radios; Intercommunication apparatus, namely, intercoms, portable emergency intercoms, telephones incorporating intercommunication systems; Loudspeakers; Alarms, namely, burglar alarms, sound alarms, alarm central units, personal security alarms, fire alarms, electronic door alarms, gas alarms, acoustic alarms; Walkie-talkies; Electric monitoring apparatus, namely, TV monitors, computer monitors, LCD monitors, battery monitors, digital signage monitors, electronic monitors for mo...