... greeting back. 9.arm/disarm the system by 5 ways :SMS,main host(keypad),wireless keypad,keychain remotes,or even remotely by ... when the system is dis armed ony,if a door is opened,it will sound fast “bibibi”) 14.support wireless “ding-dong ... Detector ~5 pc. …Wireless Siren ~1 pc. …Smoke detector ~1 pc. …Power Adaptor ~1 pc. Wireless Security GSM Alarm System with LCD Touch Keypad