... 8. Li-battery: 3.7V 200mA-1000mA 9. It supports USB connect. You can process the download, replace , delete, power ... yourself. 10. It consists of PCB board, Speaker, IC, TFT panel, Lithium battery with rechargeable function , Memory card. 11. Many methods ... , Light sense, Shadow sense, Page turning etc. 12. Accessory: USB cable Loding and playing time File time(Minute)15301441702705701080Li-battery3 ...