XDModo Solar Window Charger
Electricity is great, but if you can get it for free, even better. The cool new XDModo Solar Window Charger is a sleek and compact solar energy charger for iPhone, iPod, Android or any other USB chargeable electronic device that easily mounts to a window. It's also a great solution for charging stuff up during power outages or in emergency situations, well, unless the sun explodes of course.
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