wo-wo time never stop, check this out
https://www.wiliot.com/
So they are energy harvesting RF in order to run the Bluetooth chip?
Good luck transmitting without a bulk power storage source.
Yeah looks cheap, its a kind of battery-free BLE beacon, and they announce huge investments
I haven't looked into whether it's a scam or not, but I think when Marconi or Tesla proposed their ideas about radio-controlled devices, it also looked inadequate then.
Nowadays even every baby has a radiotelephone