The three now have only Huawei Mate 20 Pro, and also support reverse wireless charging, that is, the phone itself can also be used as a base to charge other mobile phones and electrical appliances that support wireless charging. OPPO and vivo have wireless charging models (such as OPPO Finder, vivo x1), but to match the kit, it is more troublesome than directly plugging the charger, and it is better not to use it.