... 3.CE/FCC/ROHS passed 4.good quality+low price+fast delivery 4.7 inch E-BOOK ... 3.7V/1750MAH EBOOK 5-7 hours, Music 4 hours, Video 3 hoursColorBlack/Silver/WhiteUnit Size142(L) ... Optional) Built-in 2GB-8GB memory (Optional) Support FM Radio(Optional) Frequency range: China: 87 ~ 108 MHz ... region: China, Europe, Japan, U.S.A, Campus Radio Accessories: USB Cable, Power AdapterStandard Certification: CE /FCC/ ...