The Japanese division of Google has introduced a rather unusual and interesting thing - the Gboard CAPS cap, which is made in the form of a keyboard key.
It would seem that what is unusual in a cap with an original design? It's that you can actually type with it! Inside is built in accelerometer, which "reads" the movements of the head. These movements are translated in the form of letters and symbols. To confirm, you need to press the cap like a button - the stroke of the "key" is 20 mm.
This "keyboard" connects to a smartphone or any other device via Bluetooth and charges via USB-C port. A 120 mAh battery is also built inside.
Of course, this is just a joke and Google Japan is not going to start mass production of Gboard CAPS. But for enthusiasts, there are blueprints and the necessary software to build such a device on GitHub.
Source: Google Japan