My issue is that I wanted to make the iPhone headphones work with the single port (the combo one as in 2in1 ) on the laptop. They do work technically yes but what happens is that it creates an echo for the receiver that makes them hear their voice after ~1 sec which is probably caused by the fact that a phone headsets have four wires (common, left, right and mic), while most laptops have hecommones-only jack, with three wires (common, left, right). I'm trying to figure out if there is an adapter that would make it work properly.