ATEM Camera Converter And ATEM Studio Converter

So we recently got our Atem converters and I was trying to get the talk back to work. I got it to where the Atem camera converters could here me but I was unable to be able to hear anything that the camera converters were saying. I had it switched on to the open mic button and I had my volume up. is there a way for me to hear them and is that a speaker on the front of the Atem studio Converter? any guidance would be greatly appreciated.

Would something like this work for talk back? it is a studio converter Not the 4k.