Left Behind Notification: Get instant notifications on your phone if you leave your tracker tag behind. Whether you accidentally leave your backpack at the airport or forget your car keys at the office, airtag alternatives will be your prompt reminder to retrieve your items.What You Will Get: You will get air tags-4 pack, 4 keychains, and 4 lanyards. You can secure your tracker tags to luggages, keys, bags, wallets, bikes, etc.Long-lasting CR2032 Battery:The air tag comes with one CR2032 battery that lasts up to 1 year.Even if it is left outdoors, it can keep working for a long time.Ultra-thin, Waterproof & Anti-fall: air tracker tag weighs only 0.7 ounces and is easy to carry. With waterproof rating, this trackers like airtags is designed to withstand water splashes and rain. The air tags is made of durable materials for long-lasting protection.Track Your Items Easily: Smart tags can easily track and locate your items around the globe via the Find My app(compatible with Apple iOS ONLY), activate playing sounds to find it when it's within Range (100m/350ft) or easily view your nearest location in the "Find My" web map. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.