1. 4.3 inch TFT touch screen (480*272) 2. Centrality Atlas III 3. Operation system: WIN CE 5.0 4. Standard function: Navigation, MP4/3, Photo view. Bluetooth, AV in & FM modulation for option. 5. Positioning accuracy: 10m 6. Built-in Lithium battery (1200mAH, 4 hours working)