Ultrasound is used by Microsoft teams, some apps use it to transmit data between phones. Back in the day there was a chrome app to transfer links.
Amazon sidewalk already connects devices together. Samsung Smart things already bridges Samsung devices. Apple Air tags already use “primary” Internet connected devices to transmit data about “secondary” devices.
Ludicrous R&D?
Ultrasound is used by Microsoft teams, some apps use it to transmit data between phones. Back in the day there was a chrome app to transfer links.
Amazon sidewalk already connects devices together. Samsung Smart things already bridges Samsung devices. Apple Air tags already use “primary” Internet connected devices to transmit data about “secondary” devices.
None of this is new tech, it’s all feasible.