Kenxinda R7 5.5 Inch 8G ROM Android Phone Thin Body Metal Material Beautiful Appearance 2500mAh Battery Mobliephone Technology: 3G Built-in Storage: 8GB Operating System: Android 5.1 Lollipop Form Factor: Bar Phones SIM Card Type: Mini SIM Dual SIM: Yes Secondary SIM Card Type: Mini SIM Audio Connectors: 3.5mm jack