The Hottest Wireless Technology is Now Sound!

Using sound for transferring data is nothing new. In the 1940s, when IBM tried to solve the problem of how to use regular telephone lines to connect two computers, it figured out a way to convert data into sound, send the sound over the phone and then convert it back into data. (Yes, I'm talking about the modem.)
The benefit of using sound for data transmission was that equipment to handle the process was widely available.
In the wireless era, sound is still a great option for data transmiss