The application monitors the movement of the device and changes in the electromagnetic field around it. If the device moves or the electromagnetic field around it changes sharply, the application will emit a sound signal, and the indicator will change its color.

If the poltergeist moves your device, how does it affect it, you will hear a beep. Try asking the spirits to show their presence.

Green indicator - no changes registered, red - changes at the moment, yellow - activity was registered.