The Sprint LG Viper 4G LTE GSM Smartphone features an Android 2.3 operating system with an incredible user interface on its 4" Touchscreen display. Also, this Smartphone comes with 1.2GHz Dual Core processor for ultra-fast and lag-free performance for your multitasking. Also, it possesses MicroSD card slot for storage expansion. Enjoy Cloud storage up to 50GB with this Smartphone, and with its Wi-Fi and 4G technology, connecting to the Internet is as fast as possible.