Hackaday

A detailed guide shows how to permanently disable an AirTag's speaker by drilling through a specific thin plastic area behind the battery compartment and desoldering the speaker wire. The modification maintains water resistance because the hole is made inside the existing watertight seal. This "stealth mode" prevents the anti-stalking beep that occurs when an AirTag moves with someone other than its owner, which can be useful for tracking bikes, luggage, or pets where the audible alert would defeat the purpose.

AirTag Has Hole Behind The Battery? It’s Likely Been Silenced