At present, there are many mobile phones on the market that support wireless charging, and the price is in the range of about three or four thousand. For example, Apple's iPhone 12 series, Samsung's Galaxy S21 series, and Huawei's P40 series all support wireless charging. These mobile phones have adopted the Qi wireless charging standard, which can be charged by wireless charger or wireless charging base, convenient and fast. The popularity of wireless charging technology makes mobile phone charging more convenient, no longer need to plug and unplug the charging cable, to bring users a better experience.