How to Use Single Jack Headset On PC Without Splitter: If you have a single jack headset and want to use it on a computer without a splitter, you will need a computer with a single jack port that supports both audio input and output. Most newer computers have a single jack port that supports both functions, but some older computers may not.
If your computer has a single jack port that supports both audio input and output, you can simply plug the headset into the port and it should work. If you are not sure whether your computer has a single jack port that supports both functions, you can check the documentation or look for a symbol on the port that looks like a microphone with a set of headphones next to it.
If your computer does not have a single jack port that supports both audio input and output, you can try using a USB headset or a wireless headset, which do not require a splitter. Alternatively, you can purchase a splitter that allows you to use a single jack headset with a computer that has separate audio input and output ports.