【Dual Protection – Left Behind Alert & Lost Mode】: Never stress about misplacing your essentials again! Whether you leave your luggage at the airport or forget your car keys at the office, the Find My app sends an instant alert the moment your AirTag's Bluetooth connection to your device drops. For lost items, just activate Lost Mode. This air tracker tag allows nearby Apple/Android device to detect the Tracker Tag and access your contact information, while also enabling you to track its location remotely on the app's map.It's like having a 24/7 personal assistant for every misplaced item. 【Replaceable Battery & IP65 Waterproof Design】: Each Air Tracker Tag for android / ios in the 4-pack comes with a replaceable CR2032 battery (up to 1 year of life), easy AirTag battery replacement. Check battery status directly in Apple’s Find My app (iOS) or Google Find Hub (Android). With an IP65 rating, these Tracker Tags resist splashes, rain, and brief water submersion — perfect for outdoor adventures. 【Easy to Use & Privacy Protection】: The setup process is fast and takes only about 30 seconds. Simple one-tap setup instantly connects smart tag with your Phone. You don’t have to download any other unknown apps that can collect your data. Both iOS and Android networks are encrypted and anonymous. The Smart Tracker never stores your location data or history publicly. Therefore, your data can be well protected 【Lightweight, Compact, & Versatile】: Designed for convenience, each luggage tag weighs just 8.8g and won’t scratch your belongings. Attach these key tags to luggage, keys, bagpacks, wallets, pet collars, and more. Trackers like airtags are the perfect companions for your daily life and travel needs. Say goodbye to the stress of lost belongings and hello to peace of mind. now start tracking smarter! Package includes: Air Tracker tags 4 pack and 4 lanyards — a practical gift for family and friends!