Aerials; Loudspeakers; Microphones; Modems; Radios; Transponders; Alarm installations and alarms; Baby monitors; Battery chargers; Calculating machines; Global positioning system (GPS) apparatus; GPS navigation device; Life-saving rafts; Navigational instruments for vehicles; Signal bells; Telecommunications transmitters; Telephones; Telephones incorporating intercommunication systems; Timers; Transmitters of electronic signals; Walkie-talkies; Wearable activity trackers; Charging appliances ...