Accumulators; Apparatus for transmission of communication; Batteries; Covers for electric outlets; Electric outlet covers; Electric sockets; Electrical outlet plates; Electrical outlet tester; Electrical outlets; Electrical plugs and sockets; Electrical receptacles; Electrical sockets; Electrical wiring devices in the nature of sockets, receptacles, switches, controllers incorporating tactile instructions and/or warnings for use by the blind; Movable sockets; USB charging ports