These are used and show signs of wear, scuffs, etc. Plugged them in, and they all charged. Unsure of battery health. 3 will talk to each other, no problem. The other 3 will talk to the others if you go to the contacts list and find the correct channel. I don't know a ton about these. There might be a way to get around that if you know what you're doing. Will come with what you see.
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