... 2GB ~ 8GB built-in capacity to support expansion of TFcard 128M ~ 32GB capacity, Built-in 3G module4. Built-in 3G module is ... zooming, bookmarks,Page functions.10. Support of built-in WIFI to access broadband wireless Internet access.11. ... , back key, Home key and menu key.20. Side Interface: TF (ie Micro SD) card, headset, ... power, MIC, SIM (ie 3G card); Side buttons: Power, Volume +, Volume -, Reset