Check out a possible radio of the future. This is a thin paper-based radio called the Flexio. This is a slim and stylish paper-packaged radio that comes with a flexible 1mm thick speaker on one side and a 0.5mm thick solar cell on the other.
It is just 10mm thick but will not be functioning beyond broadcasting areas set for now. But considering how fast technology evolves in practically anything, it wouldn’t be surprising to see it potentially receive new channels via the Internet or even WiFi soon.