MOCREO MOXIV 4.0 inch Capacity Screen MTK6572 Dual Core 1.2GHz Unlocked Outdoor Cell Phone Android 4.2 Ultra-Rugged IP67 Standard Waterproof / Dustproof / Shockproof 3G WCDMA Smartphone Dual SIM W/ Dual Cameras / 4GB ROM / GPS / Wi-Fi / Bluetooth / FM (Yellow) IP67 Standard ultra-Rugged / Waterproof / Dustproof / Shockproof function OS android 4.2 + CPU MTK6572 Dual Core 1.2GHz Cortex-A7 Mali-400 Dual cameras: Front 0.3MP + Rear 5.0MP RAM 512MB + ROM 4GB.Support 32GB TF Card externsion Dual SIM / GPS / Wi-Fi IEEE 802.11b/g/n/ Bluetooth 3.0 / FM/ 3000 mAh battery Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.