Feature: 1. Voice Instruction 2. Leave-Ground Alarm Function 3. 100 historical alarm records 4. Support 5 wireless doorbells 5. Separately arm/disarm each defense zone 6. Low power consumption 7. Built in siren with 120DB 8. Ring times setting function(0-9times optional) 9. Can be set to arm/disarm at specific time Function: Basic Features: 1. Compact design, blue backlight, big LCD Screen Display 2. With 10 seconds voice record function 3. Can preset set 7 group phone numbers,6 group for autodialing, one group for SMS 4. SMS control function: send SMS to arm/disarm/control siren/check alarm state power/AC power off or recover indication 5. With 32 wireless defense zones, 8 wired Defense zones 6. Learning code, easy to add or remove extra accessories 7. Remote control thru mobile. 8. Password protection 9. Sound/Mute Alarm 10. Siren accompany sound 11. Low power consumption, backup battery lasts for at least 48 hours 12. Time delay to arm/alarm