First off, let me say these little alarms pack a serious punch! The 125dB siren is *deafening*—way louder than my old Home Depot ones. When a contractor accidentally triggered it, my heart nearly jumped out of my chest. Perfect for scaring off intruders (or giving your neighbors a heart attack).

The adjustable sensitivity is a game-changer. No more false alarms from thunderstorms or rowdy squirrels, but still sensitive enough to detect actual window tampering. Though a few reviewers mentioned it might miss subtle vibrations, so don’t rely on it alone—pair it with a motion sensor for layered security.

Installation? A breeze. Peel, stick, and boom—you’re done. No tools, no wiring, just double-sided tape. The ultra-slim design blends into windows seamlessly, and the 1-year battery life means no constant maintenance. (Though the tiny switches are a bit fiddly—bring your reading glasses!)

Downsides? The all-white design lacks a warning sticker, which feels like a missed opportunity to deter thieves visually. And yeah, it’s manual—no app integration. But for the price? A no-brainer upgrade for peace of mind.