It has multiple practical modes, including a 30-second fixed alarm mode that cannot be canceled by thieves and will not stop even if the door is closed, providing strong security; an 8-second delayed alarm mode, so you don't have to worry about disturbing your family if you forget to disarm the alarm when you return home late at night; a doorbell ding-dong mode that notifies you in time when guests enter the store; and a door closing reminder mode to prevent you from forgetting to close doors such as the refrigerator, protecting family safety and convenience. It is a thoughtful assistant for home and store security.
What's in the box
1 Burglar Alarm