I bought a headset, and it has a (obviously) male headphone input and microphone output. Problem is, MacBook Pros don't have a microphone input. Instead, they have an audio line in.
However, relatively recent MacBook Pros apparently combine the audio out with a microphone input, allowing, for instance, iPhone headsets to be plugged in the computer and work as expected.
So I was wondering if there were adapters that took the two jacks and merged them into a single, "iPhone-compatible" jack, that I could plug in the MacBook Pro.