Tablet PC 10.2 inch touch screen,Google Android OS V2.1 2.0MP Camera GPS Antenna (GPS software/map need download from ... : GPS RF XN203 * Battery: 7.4V/3800mAh * Work time: 3-4 hours* Audio format: mp3, wav, ac3, aac,ogg, ra, amr ... , m4a, wma * Video format: Mpeg4, Divx4/5/6, Mpeg1, Mpeg2, Sorenson Spark, H263,H264, Rv30/40, Wmv3, Wvc1 ...