... environment.Voice and message alert. Set alarm ON or OFF by remote controller.Call in to set alarm ON, OFF, Monitor, Output, intercomSend ... 55mAAlarm currency: less than 450mAwiress currency: 315MHz or 433MHz (selectable)GSM mode: 900/1800/1900MHzBuilt-in battery: NI-HI AAA*6 ... , 1 pair of door magnetic/ sensor,1 outer alarm siren,2 remote control1 adapter1 User Manual 99 wireless zone GSM alarm system