Lenovo A660 Waterproof Dual-Core 1GHz Dual 4" Sim Dual Mode Android 4.0 Handy Lenovo A660 Waterproof Dual-Core 1GHz Dual 4" Sim Dual Mode Android 4.0 Handy CPU & GPU:Dual-core 1 GHz Memory: RAM 512MB , ROM 4GB Screen:4.0 inch Super AMOLED Plus, 800 x 480 resolution Network: WCDMA + GSM, 5.0 MP ,Android OS 4.0, battery 1500 mAh