Well, not a cheap Holder hoped for the quality of this company everything that bought from them leaves only positive emotions on the iron ring pasted on the case or on the phone holds well in my case, even tears off the tape with which the ring itself is glued to the case on the road has not yet been tried at home Shaking seems to be holding a large heavy phone a very important moment how it will warm and heat the phone while charging, but then I will experiment so, in principle, any wireless charger heats up I saw sold with a cooler with blowing if money allows you to take of course such