Step Up and Step Down Voltage Converter Transformer with USB Charging Port (500-Watt)

Converts 220 volts to 240 volts down to 110 volts to 120 volts or 110 volts to 120 volts up to 220 volts to 240 volts; Simultaneous 3-mode output; 5-volt USB/120-volt standard US outlet/220-volt universal outlet; 4 input voltages selectable; 500 watts ; 1-year warranty
Warranty: One Year
Country of Origin: China