Whenever I walk into the library I am more often than not listening to music with either earphones or AirPods as do my friends. Whenever walking through the anti-theft gate a high pitched ringing emanates from the audio device. Just wondering why the gate causes this to happen.
In: Technology
Those detectors work by sending an electromagnetic pulse, and listening for feedback which occurs when an activated anti theft tag enters their field. It’s likely the Bluetooth antenna being vibrated.
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