Portability for Multiple Scenarios: Small and versatile, this tracker can be placed in wallets, bags, suitcases, or even used as a vehicle tracker on bicycles or cars. It can also be attached to pet collars for pet tracking. Nearby Find: When within Bluetooth range, use the Smart App to make the device ring, or let your smart home device locate it for you. Distance Tracking: If out of Bluetooth range, the app shows the current location of the product on a map, allowing you to track its position. Compatibility with Android, iOS, and Smart Home Devices: The tracker works with both iOS and Android devices, allowing you to locate your items using a free app. IP67 Waterproof and Replaceable Battery: Features an IP67 waterproof rating, with a CR2032 battery that lasts up to 2 years and is replaceable.