Karassn has been burglar alarm security industry more than 18 years. During the past 18 years of serving vatious customers, we have accumulated a lot experiences.
1, Usually it's not the alarm security device that scare away the intruders, but when the device alarm triggers, and the intruder hears the voice, he was wandering, what if I am spotted, I shall be sent to prison
2, Usually there should have fall down, here you use a wireless panic button.
3, Wireless are more demanded, ans should have complete series of accessories.