The case is very high quality, works discreetly, feels good grip in your hand and fits seamlessly for the Google Nexus 4. The back and sides are completely enclosed, but all cutouts for ports and the like remain open and usable. Volume and power switch can be easily operated with the case. The only drawback: the jack socket for headphones can indeed continue to be used. The Aussparrung itself is quite generously dimensioned. However, it is here on the plug. A headset could be easily connected. One, however, mini-speaker box has a not so narrow jack port that does not fit through the slot from the case. Here, the case would have to be edited or the shell can be removed. If you want to thus also often connect music output devices, you should test them if possible equal. I guess for me it is an isolated incident. But maybe this info will help one or the other buyers. Because I was a bit confused when I tried to connect the box. I can finally live with it. Price / performance are otherwise perfectly fine.
Addendum: Also exists in a second plant, the problem with the jack. Then you should look so. The grip I like getting better with time. Without Case, the phone fills but at quite naked and sterile.