Most people understand what a wire does.
As I said earlier ...Bluetooth is just a wire. As it happens it isn't there, but it is just a wire.
Don't need to know anything else about Bluetooth.
The technology and mystery around Bluetooth is just something devised by us IT folk to justify our expensive salaries.
In the early days we had a printed buzzword generator to make it even easier for us to confuse outsiders.
Like everything else a multi-layered bi-directional implementation of this facility is available on line.
("multi-layered bi-directional implementation" was generated for me).