is there a way to turn heaphones/microphone 3.5 jacks (like on an iphone) into a seperate microphone 3.5 jack and a headphone 3.5 jack, becuase i have a good set of heaphones + speaker and want to use it on my computer
If you have downloaded and installed the manufacturer software that allows it.
You open the manufacturer software, you change the settings if available.
See (download the entire manufacturer hardware manual) the audio instructions. This shows what you are asking.
There is no guarantee the function is available. But check in your audio software, that is installed (updated if possible) on your computer.