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So they've created this audio board that converts audio into digital. And it's a little box that this company Allscan sells. It's got a couple little LED lights on it and it's got a volume on it. And you just use a standard ham radio Alinko mic, plug it into it. And it has also an audio output so you can connect a speaker to it. And then that plugs into a Raspberry Pi. That's what stores your information for Allstar. And I'll send you a link to it and you can take a look at it.