How can I hear the sound from my Ps4 and my laptop at the same time?

Can anyone tell me a way to use a headset to hear the sound from my Ps4 and the sound from my laptop at the same time with mic and audio?

All you have to do is buy a splitter that splits the cable from your headset to two which you can then plug into the PS and PC.

That's exactly what I'm looking for all the time but I can't find one

I'm not sure if this is the right one:

https://www.ebay.de/...=112060753

Two of them, one for mic, one for speakers
And an extension cable on each of the male connectors.

Can I also receive sound with the red cable, otherwise I can't hear my friends

The red / green rings are only decorative so that you can tell where the cables are to be plugged in.

That means I can talk to my friends with the plug on which the microphone symbol is depicted and also hear them? That would be all that is important because I want to plug the cable with the headphone symbol into the ps4

There are 3.5mm cables with three or four poles.

Three-pole: left speaker, right speaker, power or microphone, power
Four poles: left speaker, right speaker, microphone, power

What I have sent you are three pin connectors that only transmit one "level". On the computer you usually have Two three pin plugs. On the PS4, I don't know how it works. I thought you also have two plugs…

With my laptop and my Ps4 I only have one connector where a 4-pin connector comes in. Is there also a splitter in which a 4-pin connection is converted to two 4-pin connections?

Ok anyway thanks