Overview Get total convenience while you travel with the Insignia All-in-1 Adapter that converts 220/240V foreign electricity to 110/120V U.S. electricity, It combines a converter and adapter in one super-convenient unit. More Information Compatible with single-volt appliances including hair dryers, curling irons and electric shavers. Converts 220/240V foreign electricity to 110/120V U.S. electricity 2 modes of operation: plug adapter only or adapter/converter combination. Built-in surge protector keeps your devices and appliances safe from foreign electricity spikes.