... ,then play the greeting back. 9.arm/disarm the system by 5 ways :SMS,main host(keypad),wireless keypad, ... don’t support SMS) 10.available in AC/DC with low-voltage indicators. 11.learning sensors to alarm host, ... .check door/window status automatically(this is when the system is dis armed ony,if a door is opened,it ... 1 pc. …Power Adaptor ~1 pc. Wireless Security GSM Alarm System with LCD Touch Keypad