1. 3.5 inch TFT touch screen (320*240)
2. Centrality Atlas III 372MHz
3. Operation system: WIN CE 5.0
4. Function: Navigation, MP4/3, Picture browsing
5. 16 channels
6. Positioning accuracy: 10m
7. Built-in Lithium battery (900mAH, 3 hours working)
8. DC 5V adaptor
9. 2W speaker
10. Multi-language display
11. Size: 92mm(L)*77mm(W)*18mm(H)
12. price of Samsung 400MHz: 10 USD extra