... Second-generation high-speed processing chip MTK,MT6575 system,WCDMA/GSM,four-bands ,Mobile AP,TV,wifi,GPS+AGPS,java support ... high-speed dual-core processing platform 1G 2.3G (WCDMA/GSM) 3.4.1 inch WVGA high resolution touch screen ... OS: Android OS, 4.1 (Froyo) MS mode: WCDMA/GSM Frquency band: WCDMA850/2100,GSM850/900/1800/1900 sim card ... Dual Sim Android 4.1 Smartphone MTK6575 4" 3G cellphone (M400)