... disarm/monitor/intercom 3) Work in worldwide Wireless Burglar Alarm Product,home security protection(LS-GSM-004) 1.Voice remind to arm/disarm ... need the fixed telephone line,everywhere have GSM frequency is suitable to use2) 6 wireless defence zones,4 wired defence zones3) ... Standard packing:1 Main panel,1 GSM antenna,1 wireless PIR detector,1 mini siren,1 Wireless door detector,2 Remote controllers,1 ...