how to connect a headphone with mic ??
I recently purchased a sennheiser headphone with mic , which has separate pins for audio and mic .
There is only audio outlet port on my mac . The audio is working fine, but even when I connect the microphone pin to port[same used for audio ] the in built mic is active and there is no other option shown in system preferences .
please tell me, can an external microphone be connected to mac??? if so ,how?
can a headphone with mic be used for both purposes simultaneously with any adapters ?
iMac (21.5-inch, Late 2012), OS X Yosemite (10.10)