Hi all! I think I'm in the right forum for this type of question- please let me know if not. I have 2 camera operators and one person manning a video switcher. At the moment I run a regular SM57 into a little mic amp and into a powered headphone splitter, which gives me one out (100 ft xlr) to headphones at the first camera and another (50ft 1/4") to headphones at the second camera. This works well, but I'd love for the 2 camera operators to be able to talk back. I realize talk back systems exist, but I'd love to keep this to under $100, and I wonder if anyone has tried out something that works for them. Also, I can have wired network access in any (or all) of these locations, so if any company has a sort of network conference call that could also work. Thanks for any help or advice!