One book for many purposes:
An e-book reader can carry many electronic books. most of the products can expand the SD card / CF card and other large capacity storage, and can be used as a small mobile library. Some products can also be used as notebooks and folders.
Power saving and environmental protection:
E-book readers use less electrodes and do not use traditional paper. Due to the use of advanced display technology, they can help people buy less paper books and cut down trees, thus protecting the environment.