Headphones; Intercoms; Smartphones; Audio speakers; Batteries, electric; Battery chargers; Fibre optic cables; Internet phones; Notebook computers; Rechargeable batteries

Headphones; Loudspeakers; Megaphones; Microphones; Radios; Transponders; Walkie-talkies; Antennas; Batteries, electric; Battery chargers; Cabinets for loudspeakers; Global positioning system (GPS) apparatus; Horns for loudspeakers; Radio pagers; Radiotelephony sets; Telecommunication apparatus in the nature of wireless receivers in the form of jewelry; Transmitters of electronic signals; Vehicle radios; Telegraphic transmitting apparatus; Telephones incorporating intercommunication systems

Computers; signal lanterns; speaking tubes; aerials; radios; electro-dynamic apparatus for the remote control of signals; radio pagers; transponders; loudspeakers