Technical Specifications : Processor Model : VIA WM 8650 Nominal frequency : 800MHZ Memory capacity : 256 DDR3, Flash capacity : 2GB, 4GB for optional Storage expansion : TF card, upto 32GB Operating System : Android2.2 3G standard : Externel 3G module, WCDMA, EVDO, TD-SCDMA optional WIFI standard : Built-in WIFI module, 802.11b / g Screen Type : 7 inch 800 * 480 Battery : 1450mAh rechargeable polymer lithium-ion battery, 7.4V Multimedia performance : Support audio and video files in multiple formats Dimensions : 19.85cm, 12.7cm, 1.68cm.