A solar USB charger for iPhone to stick against a window

In the category of iPhone chargers a little
different, the manufacturer XDModo offers asolar charger
which can be stuck to a window during the recharge time to maximize
exposure to the sun.

Details in pictures:

Contrary to what it may appear at first glance in the photos
below, the XDModo is quite small, sporting dimensions of 11x11cm and
rather light with 135 grams on the scale, which makes it particularly
transportable. How does it work? Easy: you leave it at
sun for the time required for charging (approximately 13 hours) and it will stop
automatically once filled, so as not to unnecessarily use up its
battery. Charging the iPhone is then done via your usual cable at a
speed identical to that of a mains socket.