Work with four bands GSM 850/900/1800/1900MHz SIM card and voice prompt for easy operation; Two groups of scheduled arming and disarming function; The alarm panel can ARM/DISARM on the scheduled time; Four wired zones six wireless zones can be set as AWAY STAY INTELLIGENT or CLOSED types and each zone can be equipped with many accessories; Using phone (cell phone) or SMS messages to configure and control the panel remotely; Six groups of phone numbers for voice calling and three groups for SMS messages when alarm happens 10 seconds voice recording; Long-distance telephone control for arming disarming monitoring and remote announcement; Built-in voice prompt let alarm receivers know the accurate alerting location; SMS messages content from alarming defense zone can be customized; Wireless intelligent study coding; Can set max. 50 remote controllers and 50 wireless sensors; Telephone (phone) long-distance control: arm disarm monitor intercom shout and controlling appliances etc.; Built-in Ni-Hi rechargeable battery and automatically switch-able upon power failure and notification will be sent via SMS; Built-in Mic. and loudspeaker (NOT built-in siren) easy for monitoring or intercom with the spot; For worldwide use can be used as GSM alarm system (SIM card compatible with GSM) or spot alarm system (without SIM card)