Description:Anti-Theft Key FinderSmart Key Tracker is a great little tool to remind you when you want to forget your belongings. Pair it with the app and keep it running on the back end, once it's disconnected, the phone and key locator will ring to alert you, perfect for traveling and avoiding loss.Portable and ConvenientThe smart key finder has a small design and is easy to carry. You can put it in your wallet as a wallet picker, or together with your phone as a phone picker or other item picker, bringing you convenience anytime, anywhere.LONG BATTERY LIFE & STYLISHBluetooth key tracking device is powered by CR2032 battery, with a standby time of more than 10 months, and can be easily replaced for long-term use. The sophisticated and elegant appearance makes it look like a work of art.Find Your ItemsKey Locator is a great little tool to help you search and find the items you always misplaced. Just hang it on your luggage, wallet, keychain or pet. If you can't find an item, double-tap the button on the app and it will beep to help you find it quickly and easily.CompatibilityWhen you disconnect the anti-lost device on your phone, you can check the map location; Support iOS system and Android 4.3 or later (Bluetooth 4.0 required). You can download the "iSearching" app from the app store, or scan the QR code that comes with the manual to download the software.Specification:Size: 38*38*7mm.Material: ABS.