... inch TFT touch screen,resolution:480*272.Supper slim model.With FM(optional),AV-IN(optinal),Bluetooth(optional);;2 CPU:Centrality,Atlas ... receiver:20 Channels9 Precision of Locating:less than 10m10 Antenna:With GPS internal Antenna and reserved external GPS Antenna jack; ... 11 Batty:with 1200mah built-in Rechargeable Li battery,can continuously use ...