... (built-in speaker) 2,7wired and 99 wireless defense zones 3.LED display New GSM wireless home alarm system with color LCD screen(GS ... calls by using keypad on alarm panel, just like a telephone;11.One-key-control function: Out Arm, Home Arm, Remote Arm;12 ... .SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm ...