I&#x27;d like to see one like this that works through the free air -- it so much more compatible with the spirit of the age where people are even resentful of putting a power cord into a laptop or phone.<p>The old 300 baud did,  and at that data rate you can transmit a 19 character URL in 0.5s or for that matter a 128-bit UUID&#x2F;GUID.