GSM Car Alarm with SMS (GSM900MHz frequency) 
GSM Frequency worldwide transferable 
System can send and receive Short Message (SMS) indicating the alarm status 
In-car phone, easy to use 
Check the car status and control the car by phone w/o distance limit 
2 Alarm phone numbers & 2 SOS phone numbers can be set 
GSM Positioning 
GSM signal indication 
Clear English speaking voice menu 
Hopping Code, 315MHz/433.92MHz
GSM keypad, Antenna
GSM Module currency: 11-25mA
GSM Frequency: GSM850MHz/GSM1800MHz/GSM1900MHzGSM900MHz/GSM1800MHz/GSM1900MHz
6 Internal Relays(lock/unlock, parking light, dome light, siren, trunk)
3 External Relays(ACC. Engine, Start)
2pcs*Transmitters
1 tone 20W siren, Microphone & Voice speaker
Blue LED indicator, Valet Switch
Start Kill relay w/socket and wire
2-stage shock sensor
Manual & color box (8PCS/CTN/0.059CBM)