2 USB charging ports; Fast 3.4 amps (shared) charging speed; Folding, nonpolarized, nongrounded USA plug; 3 interchangeable plugs for Europe, United Kingdom and Australia snap onto USA plug; Auto-detect feature automatically adjusts to the correct voltage; Overcurrent (short circuit) protection; Overvoltage protection; Over-temperature protection; LED power indicator; 100 volts to 240 volts, 50 Hz/60 Hz, 17 watts max; cUL(R) listed; Includes user’s manual; Black;