AA Multi Device Battery Converter is used to convert up to 5 battery-powered devices that run on up to 4 AA batteries each to electric power. Converter includes 15 AA battery blanks. Simply plug blanks into the battery-powered item like a traditional battery, and the converter will funnel power from the outlet to power the device. Each built-in blank is attached to a central hub with a handy on/off button, so devices can be turned off without unplugging from the outlet. Input is 110V 50/60Hz. Output is 4.5V. Each wire cord measures 7 Ft. L Item is for indoor use only and is made for U.S. plugs.