Let me start by saying this little tracker has saved me from multiple mini heart attacks when I couldn't find my wallet. The setup? Super simple - just pop it in your wallet, pair it with Find My app, and you're good to go.

The sound is LOUD - like 'hear-it-through-three-pillows' loud. I tested it by burying my wallet under a stack of blankets, and that 100db beep cut right through. It's noticeably louder than my friend's actual AirTag, which was a nice surprise.

Battery life seems legit too. The company claims 5-10 years, and while I can't verify that yet, after 6 months of daily use, the battery indicator still shows full. No annoying low battery notifications like some other trackers.

Where it really shines is the slim design. Unlike bulkier alternatives, this slips perfectly into credit card slots without adding noticeable thickness. My wallet still fits comfortably in my back pocket.

The waterproofing gives me peace of mind too - survived an accidental trip through the washing machine (don't ask) and came out working perfectly.

My only minor gripe? It doesn't have the precision finding feature that shows distance like Apple's AirTag. You get general location on the map, then have to play 'hot/cold' with the sound when you're close.

For the price though? Absolute no-brainer if you're prone to losing things like me. Already bought a second one for my passport holder after seeing how well the first performed.