... response: 20Hz to 20000HzSupport Photo FormatJPG,JPEG,GIF,BMPSupport USB KeyboardYESFile BrowserPHOTO/MUSIC/MOVIESupport SubtitleSRT/SMI/SUB/SSA/IDX+SUB ... on net(HTML5) ,YOUTOBE,YOUKU,THUNDER,facebook,EspnFile CopyCopy with USB/HDD/NETOther featureAndroid APK(APPLICATION),angry bird ,QQ, MSN, ... .4 3D supportUSB,Card PortUSB Host PortHigh speed USB 2.0 ,1*High speed Micro mini USB Port for DC inUSB OTG ...