1.Embedded operating system, ARMg CPU high-perforance operation

2.Support WF|/GSM4GGPRS muliple communication services

3.Comes with voice prompts, support for 10 commonly used national languages

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

5.Comes with high-decibel alarms, optional solar-powered outdoor audible and visual alarms

6.Bult-n doorbell function, emergency help

7.Comes with tamper-proof alarms Built-in doorbell function, emergency help functionBuill-n tarper proof alarn funclion, arming door and window not dosed waring