This Unit will take microphone from fursuiter (and 2 microphones (stereo) from ears of the suit) and headphone (and possibly speaker for future voice of Fursuit).
It should also have input from and output to Walkie-talkie.
Another input / output should be with Central Unit to be able to send the voice over wireless. It may not be needed because currently I am thinking only about using Bluetooth and I would need only single digital pin for warning sound in case of overheat (or any else danger).
I will not use this unit in first design but if you are interrested in more, look at Arduino Realtime Audio Processing.