Just a general question about body Mics. How do body mics work. Can one receiver have more than one microphone attached or is it 1 to 1. and if so do each of the mics have their own channel in the mixer or does it all come out together. Are they interchangable like can you use one type of body mic on someone elses receiver. Now I am not a sound person so you might have to dumb it down for me but I was just curious.