Adapter plugs; Computer network adapters, switches, routers and hubs; Computer peripheral devices; Earphones and headphones; Electrical adapters; Electrical plugs and sockets; Loudspeakers; Microscopes; Modems; Mouse pads; Multimedia projectors; Noise cancelling headphones; Portable media players; Projection screens; Safety contact plugs; Sound bars; Telescopes; Wireless computer mice; Wireless headsets for smartphones; Wireless receivers and transmitters for portable media players