It is a 7-inch Android 4.2.2 smart tablet PC 8GB storage memory supports extending TF card up to 32GB supports G-sensor three-direction gravity sensing screen turning function supports 3D games supports Win2000/WinXP/Vista systems. Supports WIFI and OTG function can surf the Internet through Wi-Fi and can carry on external 3G wireless surfing function through the OTG cable just needs to buy a 3G mobile module to connect the OTG cable to have 3G network connection or to buy a wired Ethernet adapter cable to connect the OTG interface to have Ethernet connection network operation then you can enjoy the pleasure of 3G wireless network.