Mobius is a case for your iPhone with a small solar panel. It generates about 20 additional minutes of charge with 1 hour of sunshine, or 5 hours of phone calls with a full day charge (includes battery charge indicator and solar charge indicator). Mobius’ latest invention will be useful for campers, hikers, alpinists and everyone who spends a lot of time outdoors in the sun. Of course, this case works as a protector from hits and scratches. Mobius comes with USB connection to charge and sync with Apple apps.