An electrical device capable of interfacing with multiple types of duplex receptacles
includes at least one set of moveable outlet prongs that are adjustable such that
they may be readily inserted into outlets of varying dimensions. Adjustability
may be provided by, for example, a rotable or translatable connection between the
prongs and one of the outlet plugs of the device. The prongs may be biased into
position by a spring or other elastic member. By providing adjustable prongs on
at least one outlet plug, the device is able to interface with both outlets in
duplex receptacles of various sizes and types, including receptacles having ground
fault circuit interrupter (GFCI) capabilities.
