GSM-GPRS Microcomputer Car Alarm Model: CM168F Features: 1.Multi band (850MHz, 900MHz, 1800MHz) 2.GSM cell phone carrier 3.Friendly human voice instruction 4.Hopping code 5.Arm/disarm by phone, and remote control 6.Two-stage shock alarm modes 7.Alarm with SMS 8.Will call up 3 alarm phone numbers when there is an alarm. 9.Anti-hijacking 10.Override switch 11.Sensitivity of shock sensor adjustable 12.Check system status by telephone 13.False alarm trigger prevention 14.Status LED indicator 15.Trigger alarming (opening the door and engine start) 16.Shocking alarming 17.Power off alarming 18.Bonnet open alarming 19.Trunk open alarming 20.Alarm memory recall 21.Parking reminder 22.Remote trunk release 23.Automatic central locking system 24.Power speaker 25.Power window output 26.Turbo timer (optional) patible with any cars 28.Locate vehicle via GSM network services (optional & extra cost) Function: Remote 1.Arm/disarm 2.Lock/unlock 3.Searching 4.Trunk release 5.Emergency help 6.Enable/disable shock sensor(optional) 7.Siren temporary disable Phone 1.Arm/disarm 2.Lock/unlock 3.Enable/disable shock sensor 4.Activate/deactivate immobilizer 5.Activate/deactivate alarm phone numbers 6.Open power window 7.Check car status 8.Broadcast to the driver 9.Listen in the car Technical Specification: Voltage: 12V Working temperature: -20degree-+65degree Control distance: 20m-100m