... 2.2 * Batter power: 4000mAh * G-sensor and Wifi Latest 7" Tablet PC with G-sensor, WiFi and 3G* CPU RK2818, 1GHz * Operating system ... formats: MP3,WMA,WAV,AAC,OGG,APE,FLAC,AC3 *G-sensor and wifi* Office email client, video player, widgets, picture viewer, browser ...