... , Volume +, Volume -; Back , Home, Menu(touch).14. Camera function : 0.3MP Front + 1.3~8.0MP Rear15. ... 3.7V 3200mAh Polymer, working time: 4 hours (local video playing)17. Power Adapter : 5V@2A (changeable plug for ... etc.19. Picture format : Jpeg, Bmp, Png, etc. 20. Video format : 1080P decoding, Support MP4, AVI, RM, RMVB, MKV ... call function, blue tooth , GPS, dual camera , and FM radio, HDMI port,