I bought a Quantum 100 headset from JBL a few days ago and tried using it today. My PC ( a Dell Inspiron 3668 i3-7100 running 64 bit Windows 10) can only detect the headphones and use them as audio. The mic is detachable from the headphones through a TS 3.5mm jack and the headset as a whole has a TRRS jack. I made sure the port I was plugging the jack into was one meant for a TRRS jack (it even has an icon of a set of headphones with a mic next to it, meaning it's meant for a whole headset). JBL claims the Quantum 100's are compatible on all platforms, but I've tried everything and my PC still cannot detect the mic.