This is a good pduit safe. I've dropped my mobile and ........ nothing! Not damaged, still operating normally, that's what I expected from this product given the price of the mobile. I just stick behind a aimenté support for fixing the ventilation grille of the car, perfect. The shell increases the size of the mobile but it did not matter to me, I never put it in the pocket of my skinny jeans, I do not have one. The hull consists of a first rigid housing with splash proof screen and a member siliconne which serves as a shock when dropped and complete sealing, always projected. Do not immerse it completely, it is not for unsealed headphone jack, unless that is the mobile? The sound is somewhat attenuated but good mobile is protected, and well protected. To take photos, load or putting on headphones, open small silicone valves, you will not lose as molded / formed silicone. Possibility of adding a belt clip or backpack strap, as it rotates and also serves as a support to tilt the movable table viewing position without hands. My colleague also took a note for her, ééénooooorme! ;-) I recommend this product to those who make fun of aesthetics, who want to keep their cell intact, the clumsy and those who want a mobile all terrain hooked riding their bike or motorcycle with pliers goes well!