Power frequency converters take electrical input power at one frequency and voltage and provide electrical output power at a different frequency, and at a different or equal voltage. There are two ...

($20, £15.50, Amazon) The Super Bagel combines a travel adapter with a power strip, all in a compact package. This "clever device" has an adapter in the center with four different plug ...

Rich Scherr is a seasoned journalist and editor who has traveled across the U.S., Canada, and Europe, and spent more than a decade reviewing hotel room.