This is the lightweight, compact device that automatically detects incoming voltage, converts it to 120-volt AC power, and provides plug adaptation for over 150 countries throughout Europe, Africa, Asia, the Americas and Caribbean, and Australia. The plug configures to fit a variety of international sockets, and it has a built-in USB port that allows you to leave chargers for cell phones, digital cameras, iPods, and other devices at home. The device allows simultaneous AC and USB connection to charge two devices at once. An integrated surge protector protects electronics from potential power spikes. For a complete list of compatible countries, visit hammacher.com. 3" H x 2" W x 2 1/2" D. (3 1/3 oz.)