Earphones; Loudspeakers; Access control and alarm monitoring systems; Computer network adapters, switches, routers and hubs; Day and night vision systems primarily comprised of day and night sensors, day and night cameras, and monitors; Electric bark control dog collars; Electronic devices for detecting and locating lost articles, people, pets using radio frequency, global positioning systems, cellular communication networks; Food safety monitoring devices, namely, thermometers, alarms; Globa...