After testing the MINICOAST detector on multiple trips, I can confidently say it's a mixed bag. The credit-card-sized design is genius – it slips into my passport holder without bulk. During a recent Airbnb stay, its red light lens detection instantly revealed a suspicious blinking dot behind a smoke detector (turned out to be an actual hidden cam!).

The anti-theft alarm saved my luggage at Tokyo Station – when someone tried swiping my bag, the 120dB siren scared them off like a startled cat. But be warned: there's no volume control, and the alarm is loud enough to wake neighbors three rooms down.

Where it struggles? RF detection requires near-contact proximity. I had to press it against my smartphone like a metal detector sweeping for landmines before getting readings. It completely missed non-wifi recording devices during controlled tests.

Battery life is stellar though – lasted through my 14-hour flight with juice to spare. The Type-C charging is convenient, but that non-mutable alarm means awkward stares in quiet hotel hallways when it false-triggers near WiFi routers.

Final verdict? Great for finding IR cameras and as a luggage alarm, but don't expect Jason Bourne-level spy hunting. At this price point, it's decent insurance for frequent travelers who want basic privacy checks.