How do i use my laptop mic when i plugged in my headphone via aux cable

I recently had just purchase Tribit Xfree go and I always use my headphone plugged in, but whenever I plugged in my headphone, my laptop mic doesn't work, and also this headphone doesn't use it mic when it is plugged in via audio cable. Is there anywhere to let my laptop use its mic whenever the headphone is plugged in? sorry for my bad English