... for worldwide useNetwork support: GSM 850/900/1800/1900MHz, WCDMA 2100MHz5.3 inch QHD Multi-Touchscreen WiFi 802.11b/g/n Wireless network ... GPUOperation SystemAndroid 4.0.4RAM512MBROM2GBStorage ExternalSupport TF Card up to 32GBScreen5.3 inch Touch Screen Resolution: 960x540Pixels, 1600K ... , Calibrate screen, Keyboard, Wifi, WLAN, Camera, all Card Slot and USB Slot, G-Sensor, Bluetooth, Microphone, ...