It is necessary, I personally think the mobile phone wireless charging function is very useful, let me talk about my two major wireless charging use scenarios, the first is the desk, although the wireless charging board still needs to be connected with a wire, but the phone itself does not need any wire, can be directly placed on the charging board at any time to charge, if the phone can be picked up immediately, No longer as before also often pull a data line to answer the phone, after the answer can be put down immediately, very convenient