Question Wondering how a jack splitter works

[Livingdead2004]

Okay, so i want to use a microphone
Like this one https://www.walmart.com/ip/PC-Lapto...-007-173c61fb8ec0e9&athancid=null&athena=true

And use a headphone so i can hear out of the headphones and use the microphone for the audio, and i'm wondering if theres a jack splitter that could do that or if i need something else

 

[americanaudiophile]

There is a splitter to do that. Should be all you need.