Anti-lost key finderThe smart key tracker is a great gadget that reminds you when you are about to forget your items. Pair with the app and keep it running on the backend, once disconnected, both your phone and the key locator will ring to remind you, which is very suitable for travel to avoid loss. Portable and convenientThe smart key finder is compact in design and easy to carry. You can put it in your wallet as a wallet finder, or put it in your phone bag as a phone finder or any other item finder, bringing you convenience anytime, anywhere. Long-lasting battery life and stylishBatteries are included in the package. The Bluetooth key tracking device is powered by a CR2032 battery with a standby time of more than 10 months, and can be easily replaced for long-term use. The exquisite and elegant appearance makes it look like a work of art. Find your itemsThe key locator is a great gadget that helps you search and locate items that you always misplace. Just hang it on your suitcase, wallet, keychain or pet. If you can't find your item, just double-click the button on the app and your phone will beep to help you find your item quickly and easily. CompatibilityAfter disconnecting the anti-lost device on your phone, you can view the map location; supports iOS system and Android 4.3 or higher (Bluetooth 4.0 required). You can download the "iSearching" application from the App Store, or scan the QR code included in the manual to download the software.