... 1.Writing paperless,technology innovation 2.Equivalent to 50,000papers led writing tablet1.Writing paperless,technology innovation2.Equivalent to 50,000papers3 ... ,United States patent.Tracking and high precision.Fast response,Sensitive Operation,Fluent Writing,Stable performance.3.SizeSimilar to A5 paper size ... tools such as pen cap, ,finger nail and so on. Led Writing Tablet