Extremely easy to use, lightweight, small, portable battery that is very useful soon when we should move in a power-free zone, or we travel independently but need his phone ... Holds widely both charges (for now, but I do not make me worry PNY is a good brand!). One button, two USB plugs (In and Out), nothing more simple. Finally, the set has the same solid air if it is never recommended to drop to a battery ...
