Works with Apple Find My: Simply use the pre-installed Find My app and add the air tracker tag to the Items tab. Then you can find it anywhere in the world using Apple's network of millions of devices. (Note: Not available on Android) Find Nearby: With a Bluetooth range of up to 200 feet/60 metres, you can use Find My Apps to locate lost items when the item finder is in range, or ask Siri directly for help. The built-in speaker (loud, 90-100 dB) beeps to help you locate your items. Far Away Tracking: The Ntaanoo bluetooth tracker connects seamlessly to the Find My Network on your iOS device, allowing you to track items over long distances. Even if you're out of Bluetooth range, you can use the Find My app on iOS to view the smart tag real-time location on a map, and the navigation feature will guide you closer to the tag location. Left-Behind Remind and Lost Mode: If an item with one of our tracker tag is left behind and the Bluetooth connection to your iOS device is disconnected, the Find My app will immediately send you a notification that the item is missing, (at no additional cost). If you preset a lost mode and retain your contact information, the key finder allows nearby Apple devices to access your contact information and remotely provide you with the location of the localizer. Privacy Protection: Devices transmitting location data remain anonymous at all times, with each step of the search process encrypting this information. The key finder tracker itself does not store location data or history; only you can access your item's location, ensuring maximum privacy protection. Replaceable Battery & IP67 Water-resistant: The Ntaanoo luggage tracker tag is IP67 waterproof, ensuring that the tracker can withstand everyday challenges. It is powered by a CR2032 coin cell battery that lasts up to 1 year. When the battery is low, the key locator will notify you to replace it, and you can purchase this battery to replace it yourself. The unique cover design also prevents children from opening the device easily.