EASILY LOCATE YOUR ITEM: ANNNWZZD item finders can easily locate your item by ''Find My'' app (compatible with Apple iOS ONLY), activate playing sounds to find it when it's within Bluetooth Range (100m/350ft) or easily view your nearest location in the "Find My" web map.LEFT BEHIND REMIND: You may attach this tracker tags to anything you need to keep an eye on. When your belonging is left beyond the Bluetooth range, the item locator will send you a reminder within 10 mins (turn on the notification setting in advance) so you can go back and retrieve it.WITH A FREE KEYRING INCLUDED: Each package includes 4 free key rings in addition to the air tags-4 pack, that you can easily attach it to your keys, luggage, suitcase, handbag, backpack, wallet, and more.REPLACEABLE BATTERY: The Package include an extra battery (CR2032) for air tag , which lasts up to 12 months. You can check the battery status in ''Find My'' app, and replace it in time. The long battery life makes sure the ANNNWZZD air tag is always active to help you locate your items.ONE-MINUTE SETUP: Setting up and usingANNNWZZD Tags , open ''Find My'' Apps and bluetooth,Then press and hold the loss prevention device for 3 seconds until a beep sounds, tap ''Add Item'' and ''Other Supported Item'', and then the pairing will be compeleted within 10 seconds.