It's a pocket-sized computer keyboard. It's highly portable and operated with one hand. It produces all the usual characters with relatively few keys which are pressed in groups, i.e., chords. Production models would include (at least) a miniature joystick. I had memorized all the chords after a week or so of intermittently playing with my first working unit. After that I quit using my qwerty all together and never missed it. Yet Another One-hand Keyboard | 
