... to set you company logo2. Energy saving and environmental protection3.Read the book in strong light4. Wireless bookstore5. Exquisite fuselage, lightweight ... than 15 days, without charge every day.Protect your eyesight: Read for a long time, no blinking, font size scalable, ... reading is your health partner.Read in full view: High definition, looks close to the paper, read angle close to 180 degrees. ...