... ,HTM,HTML,EPUB,FB2 3.Faster Delivery Time & Good Qualit 7 inch E-BOOK with color displaySpecification Screen7 inch TFT color ... selectableBatteryBuilt-in Li-ion Battery 3.7V/1900MAH EBOOK 5-7 hours, Music 4 hours, Video 3 hoursColorBlack/Silver/WhiteUnit Size209 ... -8GB memory (Optional) Support FM Radio(Optional) Frequency range: China: 87 ~ 108 MHz (50 Step) World: 76 ~ 108 MHz ( 50 Step ...