... use led high-tech 3.OEM welcome reading pen easy reader book for kids and audltdescription:Reading pen as popular Kid’s ... battery, A-Grade lithium battery built-inRelated product: Product reader penColorred,green,blue,white,black,yellow all color is availableMaterialABSSize13cmBrandSmart ... ,repeat,mp3 playerwarranty2 yearspackinggift boxOEM serviceYES · reading pen easy reader book for kids and audlt