1. Supporting GPS individual or vehicle position; 2. Supporting GSM 900/1800Mhz or 850/1900 Mhz; 3. High-sensitivity, new workmanship and the most advanced GPS chip; 4. Can accurately position even if with weak signals; 5. Can work effectively in limited space such as the remote and narrow places in a city; 6. Low energy consumption; 7. Fast signal capturing; 8. Supporting single positioning and continuous tracking; 9. Supporting alarming and remote monitoring; 10. Supporting fast dial button; 11. Supporting to search for the location information by SMS and Internet; 12. May monitor without disturbing the tracked person and realizes real-time tracking; 13. Can position the holder by call or mobile phone SMS; 14. In emergency, press the SOS button to have an accurate positioning.