If you only have a combo jack (or also known as TRRS - for microphone and headphones, typically on smartphones and new laptops) on the device, then you seem to need to plug a Y-cable into the main port, e.g.:
InLine Audio Headset Adapter Cable (0.15 m, Entry, 3.5mm Jack (AUX))Very important: the plug must be a TRRS jack. So, have three black rings.
You connect the microphone to one jack and headphones or a loudspeaker to the other. Apparently nothing else works.
I'm not sure if it works that way, because the microphone's jack has three black rings (or TRRS) and not two. Apparently you also need the adapter shown in the picture below:
https://www.digitec.ch/im...I believe, however, that you have to buy the adapter separately.