Aluratek's Track Tag uses Apples powerful "Find My" Network to geolocate the device just about anywhere in the world. Simply add the Track Tag to your Apple iPhone devices in the "Find My" app to track and locate your belongings instantly and accurately. Throw one in your golf bag or luggage while traveling. Keep track of your kids or loved ones by placing one in their backpack or vehicle. Put it on on your keychain and never misplace your keys again. You can play a sound on the built-in speaker by going to the Items tab in the Find My app. Just follow the sound and your search is over. When you've left something far behind, the "Find My" network helps track down your Track Tag by sending out a secure signal that can be detected by nearby devices in the Find My networks. The whole process is anonymous and encrypted to protect your privacy. The Track Tag comes with a replaceable CR2032 battery with an estimated average life expectancy of one year. Take the worry out of losing your precious belongings with the Aluratek Track Tag and the power of Apples "Find My" network.