1, wireless/wired gsm intruder alarm 2, anti intruder, gsm network 3, call phone and send SMS with alarm system wireless/wired gsm intruder alarm1, wireless/wired gsm intruder alarm2, backup battery for home alarm3, call phone and send SMS with alarm systemFeatures: 1, GSM network, no need telephone line2, 16 wireless zone and 4 wired zone for gsm intruder alarm3, can call 5 phone numbers and ...