Wireless Charging PCB Module 5-12V

Hello, I want to make a wireless charger for mobile phones (iPhone x, which theoretically has a QI receiver integrated) and I have seen this transmitter module (https://www.seeedstudio.com/Wireless-Charging-PCB-Module-5-12V-p-1913.html) , but it says: This wireless charging module cannot charge mobile phones, and can only charge devices connected to the receiving end.

Can someone tell me if it is correct that it does not work for mobile phones? Why shouldn’t it work?

Thank you