Features: 1) Digital keypad for operation 2) Automatically log in sensors and very easy for additional sensors, you can also remove any detector if you need 3) 10pcs remote controllers is a most for one host 4) 99 alarm zones, with LED zone display function 5) 10 seconds voice recording feature, with 9 channel phone number presetting 6) Data protection: all input data is programmed by the panel and to avoid the information be changed 7) Power off protection, all input data will not get lost when the power is off 8) Low battery indication, when the standby battery get low, the power / battery LED will flash and displayed with FF, the user need to change the battery 9) Emergency alarm, the user can press the emergency button on the remote control to call for help, the system will dial out the preset phone number without any sound 10) Spot listen in feature, both active and passive listen in 11) Alarm priority feature, no matter call in or out, or the line is busy, the host will make alarm first 12) Home arm / delay arm feature / separate arm 13) Remote access feature, you can remote control the alarm via remote telephone, after the password confirmation, you can arm, disarm, start up the siren, listen in, inquiry arm or disarm status, turn on or turn off the 12V power