... ,GPS 3: 3.8 inch, 5 mega pixels 4:Dual sim card,Dual standy Product Specs. Basic ParametersModel No.Hp381RemarksTypeSmart phone, music ... 3G cellphone Time to market2011-6-1 Mobile standardGSM+WCDMA dual SIM card dual standby Mobile frequencyGSM/GPRS/EDGE 850/900/1800/1900, ... USB port, 3.5mm earphone port Expansion cardSupport TF card(microSD card), capacity up to 32GB WiFi(WLAN)Support WiFi, 802 ...