Big capacity and, faith, reasonable weight.

In reading the reviews here and elsewhere, this accessory seemed a perfect complement for travel.
At the reception, and after trying a few hours, I can only confirm what I have read.
Robust and highly efficient battery.
Two USB outputs, one for 1A and 2A of the other, it is easily possible to load a wide range of devices.
(For my part, I loaded iPhone, iPad, HTC and some other small accessories rechargeable via USB cable).
Point significant, the two ports can be used simultaneously.

Packaging is very careful, the contents comply with the description (battery, two USB cables -> DC, two connectors / DC adapter, a carrying case and documentation).
In this configuration, there must be a charger that of an iPad for example, a USB cable to charge the battery (micro usb).
If you have devices using cables with jacks other than the supplied adapters, it will of course retain and use .... (Apple devices such .....)