The AT&T Mifi is a rectangular shaped device. The proper orientation to hold it is long-wise across the palm of your hand. Find the charger port in the center of one of the two long sides. Make sure this is facing down, or twords you when holding it.
Across the top of the device there are three items:
* far left: a memory card slot. (not used at all.)
* off center right: a button that currently is programmed to do nothing.
* far right: the power button.
As mentioned above, the charger port is a micro-usb in the exact center of the opposite side from the side with the buttons.
The Mifi holds a 10-hour charge.