Looking for new work headphones

I work in a call center, and I can't stand my provided headphones. I have an enormous head and oddly-shaped ears, and would greatly prefer circumaural headphones. Noise cancelling would be a plus, as the person behind me talks very loudly. In addition, it has to connect to a GN1200 Quick Disconnect smart cord provided by the company. I can bring in any headphones I like as long as they aren't flashy or distracting. Anyone have any ideas? I can't even find any circumaurals with QD.