Computer keyboards; Headphones; [ Lithium ion batteries; ] Loudspeakers; Magnifying glasses; Microscopes; Mouse pads; Optical lenses; Pedometers; Portable media players; Scanners; Screw-tapping gauges; Switchboards; Telescopes; Thermostats; Video telephones; Wrist rests for use with computers; Eye glasses; Metal detectors; Transparency projection apparatus