... system,RAM:1G/512MB(Optional),5.5"QHD screen,960 x 540 pixels,Equipped with the Android 4.1.1 OS ... ,WCDMA/GSM,four-bands , Mobile AP,wifi,GPS+AGPS ... with soundWireless transmission:3G,WIFI 802.11b/g/n,Bluetooth 2.0,EDGE,HSDPA,HSUPAModem features:Wireless AP ( Mobile ... Mins)Standby time:120-180 (Unit:Hour)Phone book:1000 GroupSMS/Color message:SupportHeadphone jack3 ...