... .cute design,mini-size, interesting books. Item: Educational Reading Pen Full set: USB, recharge,touch reading pen,warranty card,a booklet,earphone(or ... a TF card),you may download any song youlike.Main materials are eco-friendly.6. Packing: each in a poly bag ... Opportunities of Reading Pens The experts said that over the next three to five years, all of the cheeper educational books, primary ...