Magpi Radio uses text-to-speech to read tweets coming in from various channels. Volume and power are controlled by the knob on the left. Channels can be selected by turning the knob on the right. As you click through channels, the beak changes color so you have a “glanceable” indication of its state. Pressing the knob on the right will favorite the last tweet, indicated by a red pulsing beak.
The radio is controlled by a Raspberry Pi and an Arduino inside a modified wooden bowl. You can check out his post about the nerdy details if you’re curious to see how he made it happen.