Depending on the situation, if you lose your keys and the tracker is connected, simply open the Nedis SmartLife app and press the button corresponding to the tracker. The tracker will start emitting a sound, allowing you to easily locate your keys.
Also, the process works in reverse. If you can't find your mobile phone, simply press the button on the tracker and your phone will start emitting a sound, even if it is set to silent or vibration mode. This allows you to easily find your mobile phone even when it is locked or set to silent mode.