1. Embedded opering system, ARM9 CPU high petomanoe operatior

2.Support WFl/GSM/4G/GPRS multiple, communication services

3.Self-contained voice prompts, support 10 commonly used national languages

4.Support access to Graffiti Cloud, Alexa intelligent voice control, APP push

5.Self-conlained high-decibel alarm

6.Built-in decrbell function, emergency help

7.Self-contained tamper-evident alarm, arming windows and doors are not closed warning