The next gadget, Tap Strap, may seem stupid to some, useful to others.
This is basically a keyboard made of a flexible "smart-textile" system, which slides over the fingers and recognizes movements. Press your fingers on any surface, and words appear written via Bluetooth. Each finger is a vowel and combinations of the fingers make up the other letters and symbols. There is no claim on how fast it can be entered, but there is also a training application to teach you.
How it works.
1.
2.Turn on and Pair