HyperX Cloud II is not detected by the phone without a microphone?

I have a HyperX Cloud II Headset and a Huawei P8 Lite 2017.

The headset has a detachable microphone and as soon as I unplug this from the headset, the headset is suddenly no longer recognized by the phone.

If I insert the headset without a microphone only 2/3, it will be recognized, but is mega quiet and of course also shaky.

Is there such a kind of "adapter" for the microphone jack on the headset (jack 3Pol), the pretend that the phone that the microphone is connected? Or maybe you can build something yourself?

Is that pretty stupid to have permanently connected the microphone, if you want to listen to music on the go.

Hmm, I have not even tried, because I only use it on the PC. Will test it on my smartphone, when I'm back home.

I suspect that it is due to the 2-in-1 jack, the audio output and Microinput is taught simultaneously.