You can add multiple sirens to a single system and give them unique names (e.g., "Backyard Siren," "Hallway Siren") via the keypad for easier management. Installation & Battery Life

Beyond full alarms, it can relay entry chimes and countdown chirps , which is useful if your base station is hidden.

The siren is weatherized and suitable for outdoor mounting, such as under an eave, to provide external deterrence.

The siren emits a 105-decibel blast, roughly equivalent to the volume of a table saw or a motorcycle.

Reviewers from Best Buy frequently describe the sound as "piercing" and "deafening," noting it is loud enough to be heard by neighbors down the street. Key Features