1. Multifunctional, not only has calculator function, but also has e-book reader function.
2. Comfortable e-book, text document reading
3. Privacy screen, it is difficult for others to read your display from the side.
4. One-touch lock calculator use, shortcuts to calculator functions. Shortcuts from calculator functions to tax readings.
5. Support USB charging and data transfer.
6. Easily transfer text documents from computer to device.