... 2.Equivalent to 50,000papers led writing tablet1.Writing paperless,technology innovation2.Equivalent to 50,000papers3.Button battery with five ... years lifetime for battery,Equivalent to 50,000papers.2.LCDReflex LCD technology,United States patent.Tracking and high precision.Fast response, ... occasion4.AppearanceIt is from the first roll –to-roll LCD production line in the world,has passed FCC,CE and ...