Features: 1. Multi-band(850/900/1800/1900MHz) 2. GSM cell phone carrier 3. Alarm with SMS 4. Auto arming 5. Remote trunk release 6. Emergency help SW. 7. Hopping code 8. Report incoming telephone number 9. Hacker memory 10.Can dial 3 alarm phone numbers and 1 emergency phone number when there is an alarm 11.Locate vehicle via GSM network services (optional & extra cost)