You are the type of person who needs your phone in any number of extreme situations. Expand the powers of your iPhone 4 or 4S with the Mophie iPhone 4 / 4S Juice Pack Pro Rugged Battery Case. Featuring an extended 2500 mAh battery that more than doubles your battery life, this case protects against even the most extreme conditions. Resistant to vibrations, sand, rain, dust, shock, splashes, drops, and impact, this case is beyond military grade, perfect for the man or woman who can take charge no matter what. Plus, with the added belt clip, this ultra-rugged case keeps your phone at hand, no matter what. We salute you!