It is best not to use the full package mobile phone case, the harm is relatively large, it is best to use the edge of the package, because the full package will make the battery does not dissipate heat, especially when charging and playing games, which will lead to no heat dissipation and reduced battery life! And if it is plastic, heating will also have chemicals, harmful to the body, generally installed in the warehouse of such a plastic phone case, even flies and bugs are not there! Because they can't survive in there!