... HDMI DevicesVoice frequencyBuilt-in stereo speakers 1 moksan 1W power outputport built-in microphone headset3D GameSupport 3D Game; can ... OfficeOpera,UCWeb,SkyFire,Dolphin / support PDF/Word/Excel/Powerpoint Power adapter100~240V input,5V/2A outputBattery3.7V/3500mA Video ... About 4 HoursAccessoriesCharger, English User manual , OTG cablet , USB cable(2.0) ,earphone(3.5), cleaning cloth .Size192.3*120 ...