Ten features of e-books from the blog: 1. Choose from a variety of content: provide books, audiobooks, videos, courses and a variety of product content 2. Deep and shallow mode to care for the eyes: switch smartly with the system, and it is not easy to get tired after long-term use 3. Cloud synchronization is easy and worry-free: the collection of books, reading progress, and notes are automatically synchronized for you in real time 4. Unlimited offline use: After the files are downloaded, they can be read and listened to without the Internet 5. Simultaneous installation of multiple devices: a single account supports simultaneous binding of 5 mobile devices 6. Bookcase browsing is super convenient: a variety of sorting and filtering conditions make it super easy to find books 7. Customized book lists are free: 20 customized book lists and 1 password book list are at your disposal 8. Hide old books and keep them refreshed: you can hide the books you don’t want to read with one click to stop syncing 9. Adjust the reading layout as you like: font, size, background, and page turning direction multiple custom options 10. Crossed, bookmarked notes: easily marked in 4 colors, and you can add personal notes If you have any questions, please feel free to contact the customer service center through the App (Settings→Contact Us Function) or go to the blog to contact the customer service center, let us provide you with immediate assistance!