Can a microphone (not speaker) be connected directly to an EZ-B V4 ? I am building an R2D2 and would like to allow question to be spoken directly to R2D2. Like today I had him in the office and he was 10 - 15 ft away from my laptop and I was trying to ask him a question. Once I remembered I had to speak into the laptop mic, he answered just fine. However I don't want to do it that way as I my not always have my laptop around.