Guardian Device Phone Tracker is designed to work without affecting your device's battery life. It also triggers an Anti-Theft audible alarm on your device, even if it's in silent mode. The app requires a password to disable the audible alarm, and tracking is only performed when requested. Additionally, the app returns information about the action performed remotely and allows you to activate and deactivate the alarm remotely. It's easy to configure and offers the option to hide the Guardian tracker app from the apps list. The app also requires a password to access it and blocks uninstallation from outside the app.

However, it's important to note that for the Guardian Device Phone Tracker to work as expected, it will be necessary to use the device administrator permission.