The wireless charging function of Xiaomi mobile phone can be brought with a phone case, which will not affect charging. I use a mobile phone is millet 10 mobile phone, bought three mobile phone cases, two of which are bought by the official store, one is bought by a third-party platform, can be charged normally after taking, I bought a car 20w wireless charging, no impact, charging speed is very fast.
Yes, it uses the interaction between the coils, and it does not fail to charge because of the phone case.
As long as the shell is not too thick, and there are no metal parts such as the phone ring, it can be charged normally