Provided with functions of common telephone and security alarm system. The main feature of the latter one is as follows: ◆ Auto-call 4 pre-programmed telephone numbers consecutively ◆ Call line disconnection monitored and low power indication ◆ Recorded voice re-played, save information free from power breakdown ◆ Automatically dialed to summon help in priority order ◆ Emergency spot monitor, remote arming / disarming ◆ 120dB siren available ◆ Arm / disarm by remote control, keyboard, remote phone ◆ Different colour available Basic component:1 Main panel, 1 Wireless infrared detector,1 Wireless door/window gap detector, 1 Alarm horn, 2 Remote controllers, 1 Power supply.