1.8 wired defense zones,99 wireless defense zones,5 wireless remote controller to code,3 groups of voice alarm phones. 2.SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm3.Compatible with InternationalAlarm Centre protocol Ademco, Contact ID 4.Arm, disarm, monitor, and intercom by phone 5.Built-in AAA NI-MH rechargeable..