[ Galvanic cells; batteries, electric; solar batteries; battery chargers; computer memory devices; ] computer peripheral devices; [ headphones; earphones; telephone receivers; ear plugs for divers; ] loudspeakers; cabinets for loudspeakers; microphones; [ remote controls for stereos; transmitters of electronic signals; sound transmitting apparatus; audio- and video-receivers; vehicle radios; walkie-talkies; ] portable media players