At the risk of sounding like I'm defending a product I don't particularly like, of course somebody can tamper with the electronics, but even without the speaker

At the risk of sounding like I'm defending a product I don't particularly like, of course somebody can tamper with the electronics, but even without the speaker alert, an iOS device will warn about an AirTag moving with you, and the Android app can still find nearby tags (and I'm sure someone has built and released an Android app that can scan in the background too - Find My is just using standard BLE after all). Once discovered & the police are involved the tag can be linked back to the owner with a nice paper trail that can be presented in court... so it's still a worse device for a stalker to use. They'd be much better served using a cheap GPS tracker[1] with a disposable SIM card... there are heaps of them available. You can buy both domestically and internationally from aliexpress, and they're cheap. 1: https://www.speakit.co.uk/products/speak-it-premier-mini-gps-gprs-magnetic-real-time-tacker-requires-sim-card https://www.speakit.co.uk/products/speak-it-premier-mini-gps...