Like life, if you can't adapt, you and your incompatible devices might as well be obsolete. David Clark has found a way to make the necessary adjustments with your communication equipment. Take, for instance, their Single Plug Coil Cord Assembly (P/N 40602G-02). This item connects the electronic noise cancelling (ENC) battery powered module found in many of their headsets to a single radio jack (U174/U). That, my friends, is evolution in the form of communication solutions.