Use it like you would any other charger, simply plug it in and attach any existing USB charging cable. That's it, you're ready to go. Charging begins right away and will stop automatically once your device has reached a full charge. Keep all your devices fully charged and ready to go with the intelliARMOR 4-Port USB wall charger.
Details: Input: 100-240V 50/60Hz 0.4A Output: 5V 5A - intelliSMART technology routes the correct power to any port.