... just like a telephone;11.One-key-control function: Out Arm, Home Arm, Remote Arm;12.SOS, fire, gas, door ... bypass defense zones programming function;14.Wireless coding: easy to add additional wireless accessories;15.Remote control Arm, Disarm, Monitor, and ... Standard pack components 1 main panel1 wireless PIR detector1 wireless door sensor1 siren2 remote controllers1 GSM antenna 1 power supply1 ...