Giới Thiệu · Si Revolution
A Simple, Smart, Fast, Invisible, touchscreen keyboard for any age that frees up your whole screen changing the future of mobile socializing.
With the Si Revolution keyboard you can move your keys, expand them, resize them, and relocate your keyboard anywhere on the screen.
For the letters A-S tap on the 4 keys. For letters T-Z, tap between the 4 keys. It is that Simple!
Unlike the old cumbersome keyboard designed for typewriters and not mobile phones, Si Revolution has 4 keys with a layout that is familiar to the whole world regardless of language and culture.
Any user can type instantly while viewing the entire touch screen.
