... ,easy to operate by family 3) 10 defence zone Wireless Security Alarm Product,home security protection(LS-GSM-004) 1.Voice ... remind,easy to operate by family2.Wireless and wired alarm zones3.Wireless zones can add no limit wireless sensors as your need4.Learning code ... II. Security Alarm System Standard packing:1 Main panel,1 GSM antenna,1 wireless PIR detector,1 mini siren,1 Wireless door detector,2 ...