The dual power converter converts foreign electricity from 220 volts to 110 volts. High/low selector switch. Low setting (0 watts to 25 watts) for shavers, battery chargers and more. High setting (26 watts to 1875 watts) for straighteners, hair dryers and more. Set includes 5 polarized adapter plugs and a zippered travel bag. Type: Foreign to USA Voltage: 110V External Voltage: 220V