Smartphone USB C distributor?

I'm looking for the Huawei P20 Pro a USB C port, where I can use the original USB C IN ear headphones and at the same time can charge the smartphone via the USB C port.
So exactly: (only it's for the iPhone X) https://www.amazon.de/...078X3WWGY/

So does anyone know something only with USB C ports?

An example would be the product here:
https://www.amazon.de/...071FJ68S4/

Since it is compatible with the Mate 10 Pro (Questions & Answers), I assume that this is also the case with the P20 Pro.

Thanks for the answer but this cable has a USB C and an AUX output. I'm looking for one which has 2 USB C outputs (for charging + the USB C headphones).

Have you found one now? I'm looking for the whole time…