Smart people design a smart product. This is the best expression from me for this simply simple Hidden Radio concept with some cool tweak of the feature.
Design by smart Australian, John Van Den Nieuwenhuizen, Hidden Radio is a radio (obviously!) that shaped like a half-capsule when closed, and looks like a spore/mushroom when tuned with the maximum volume.
The concept explanation is like this: By lifting the White cap up, you increase the volume. The higher you lift the cap, the louder the sound is.
Also, the cap is rotatable. Which John later use it for radio signal tuning and the LED below the base is the signal quality indicator.
You might want to learn more about this smart Hidden Radio at John’s Site. Just go ahead and give John an applause because this design is very good indeed!