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Wireless charging can be used with a mobile phone case, and the mobile phone case will not affect wireless charging, unless your mobile phone case is very thick, which has isolated the thickest limit of the contact between the charging bank and the mobile phone. In addition, your charging will not be limited, and you can directly charge it, and the charging will be very fast, and will not affect the charging speed.
The speed is the same as without the phone case, so you don't have to worry about these, if you are really worried about these, you can also directly remove the phone case when charging, so as to cancel your worries.