... Full set: USB, recharge,touch reading pen,warranty card,a booklet,earphone(or not),8 books(changeable) features:1 ... form, and with upto 8GB memory(with a TF card),you may download any song youlike.Main materials ... are eco-friendly.6. Packing: each in a poly ... In the coming ten years, there will be a huge market for reading pens and audio books. ...