1. Built-in bluetooth 4.0 
2. Work with Android+IOS APP application
3. Alarm host and doorbell functions dual work
   For example, when front door sensor under arm status, it can trigger host alarm when
   somebody break into your home. But when the front door sensor under disarm status,
   the host will make “ding-dong” doorbell sounds to remind user somebody is coming.
4. support night light function.
For example, when you back to home at night and trigger the front door PIR sensor, the host will be light on, enjoy a new kind of smart home life.
5. Voice guided host, easy operation
6. Work with alarm accessories to be a alarm system
7. Maximum support 10pcs sensors
8. Support 4 kinds of defense line: Away Arm, Home Arm, 24 hours and doorbell
9. the voice volume is adjustable, the light brightness is adjustable