Revolve Electronics xeGeo Compact USB Charger and Battery Backup for International Travel Replaces existing chargers - compatible with over 3, 000 devices like Smartphones, e-readers, mp3 players and more! Retractable prongs that for charging from AC wall outlets in the U.S., UK, EU, Australia, etc. - over 100 countries in all Recharge two devices simultaneously, from the wall or on the go with xeGeo's internal 800 mAh battery Body made from a revolutionary Green material - bamboo blended with recycled automotive plastics