Lora long-distance walky talky upgrade

I’m intstd in getting one of these long-distance wireless communication doodads - today’s walkytalky with ~10km range
see also heltec site

The messaging doesn’t rely on cellular towers, apparently voice and mesh networking is also doable

Its not too much use alone so if anyone else wants in on the fun lemme know , I’ll order several -
iiuc we’ll have to order all of the same frequency

I have two 433Mhz meshtastic devices - if you get those we can do some tests

cool i will go for it