... 2.0AudioBuilt-in Stereo Speaker3.5mm Stereo HeadphoneBuilt-in MicphoneWIFI802.11 b/g3GExternal USB 3G Module,CDMA2000 HUAWEI EC122,ZTE AC2736WCDMA HUAWEI ... E220,E1750,E156G,ZTE:MF637UBroadbandExternal USB turn NICG-Sensor360 Degree G-SensorButtonPower,Home,Menu,Esc,ON/OFFBattery2250mAHPower 9V/2A power adapter ...