... 3. voice prompt for remote operation Wireless Burglar GSM Home Alarm System Features: 1. 7 wired and 99 wireless defense zones ... . SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm;13. Real-time, delay, 24 hours, bypass defense zones programming ... -in AAA NI-HI rechargeable battery: make alarm when power off;17. SMS alert for external power failure or recovery. Parameters:Input ...