Let me start by saying this little device has been a game-changer for my elderly mom. The wristband button is her constant companion—IP55 waterproof means she can even wear it in the shower (massive peace of mind). When she pressed it during a fall last week, the receiver's alarm was loud enough to hear through closed doors, and my phone buzzed instantly with the Tuya app alert—even though I was at the grocery store.

The setup had me sweating though. Like other reviewers, I wrestled with pairing until I randomly tried my 5GHz network (despite the manual screaming '2.4GHz ONLY'). The app interface feels like it was translated through three languages, but once configured, adding my siblings as shared contacts was straightforward. No subscription fees here—just make sure your phone isn't on silent!

Two gripes: First, that 'on/off switch' mystery hole on the receiver? Pure comedy—turns out it powers on automatically when plugged in. Second, while testing range, alerts failed when I walked beyond our backyard (about 300ft), contradicting the advertised 1000ft claim. For indoor use in our 2-story house? Flawless.

Pro tip: Stick the round button near toilets using included tape—we learned this after mom couldn't reach her wristband during a bathroom emergency. That Double-sided adhesive is stronger than my willpower at a buffet.