... .4.The OS is stable 5.Screen is made by three-layer architecture tempered glass from JapanFeatuerCPUrockchip 2808 (ARM926EJC+DSP) 600mhz/ ... / 3.7V (Li-On rechargeable)Power Adaptor220V Input, 5V DC Output, 2AWIFICSR / MARVELL WIFI B/G/N 802.11 b/g3GOptional ... KeyboardBrowserGoogle BrowserVedio FormatMPEG1,MPEG2,WMV9, MPEG4-SP,ASF,DIVX,H.263,H.264,RMVB,MOV 1080PAudio FormatWMA,MP3,WAV,OOG,AAC,EAACPicture ...