Quote Originally Posted by Sparky5019 View Post
Many better solutions that much lower profile and lighter available now.

Example
http://www.silynxcom.com
Those plug into 3.5mm devices like cell phones & tablets for listen only. I called their customer service to get info. They don't offer 2pin or TP-120 cables for use with radios yet but they are working on it. They told me they are primarily for cell phone use now. Expensive headphones