... ), 11. Bluetooth 2.1 + EDR12. GPS/AGPS, FM, G-Sensor : X/Y/Z direction13. External buttons: Power On-Off, Volume +, Volume ... . Battery : 3.7V 3200mAh Polymer, working time: 4 hours (local video playing)17. Power Adapter : 5V@2A (changeable plug for global ... , 3GP, WAV, etc.19. Picture format : Jpeg, Bmp, Png, etc. 20. Video format : 1080P decoding, Support MP4, AVI, RM, RMVB, MKV, WMV ...