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Now yeah, Adrian knows are still around and very, very popular as well. And I haven't, I've actually, I've got a couple here, but I haven't used them in years. I went to the Down the Raspberry Pi route, but they have their uses. That's for sure. And yeah, MESH network, software, MESH networks, all the internet can go down and all the rest with it and solar power and batteries. It uses a lot of radio network. There are frequencies, they're using different countries. When I was a counter member, I had a very late night last night. 915 megahertz and stuff like that. Free, so not only radio hands can do it. Normal and licensed people also can use it. And so emergency preparedness or just handing messages back.