So AirBnB acquired Lapka, the brilliant industrial design firm from Russia. I was browsing through their products and came across this amazing product with great user experience design and industrial design.
Heres the thing. It doesn't need bluetooth pairing or any other sort of user initiated connection. Anyone knows how it works ?> I suspect they use "ultrasound" for connection or communicating info with the mobile app as thats one of the tech specs.