led writing tablet 1.Writing paperless,technology innovation 2.Equivalent to 50,000papers ... 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 ... as pen cap, ,finger nail and so on. Led Writing Tablet