The mobile phone is well protected from dirt by the close Anschmiedung and has been well handled by the material here - Original HTC. For drop test I can not say anything because I have not tried this. But the idea is the cover for Dot. To use ads, very awesome! Although Samsung like no points offering a window, but this is even cooler. Once a call appears, can either accept the call or reject directly through haptic feedback on the cover. Status notifications such. As a new SMS will be displayed on the cover with a big letter-symbol and whichever holiday is just, if displayed at the push of the front on the cover when it resumes to which it fixed is. For example, in a pumpkin Halloween, Christmas, a Christmas theme with reindeer. Next designs can be selected via the official HTC app.