I use one of those fbi style ear and mic pieces and it has a combo 2.5 and 3.5 jack. I had bought the wrong one once but the jacks were too far apart. Luckily a coworker had done the same but with the jacks closer so it would fit my adapter. I was wondering if this config had a specific name to it and if so, what are the closer ones called vs the further away ones?