[ANTI-LOST KEY FINDER] The smart key tracker is a fantastic gadget that alerts you when you're about to forget your belongings. Connect it to the app and let it run in the background; both your phone and key finder will ring to notify you when they disconnect, perfect for travel to prevent losses. [PORTABLE & CONVENIENT] The smart key finder is designed in a compact size and is easy to carry. You can place it in your wallet as a wallet finder, in your bag with your phone as a phone finder, or attach it to any other item, providing convenience wherever and whenever you are. [LONG BATTERY LIFE & STYLISH] The Bluetooth key tracker is powered by a CR2032 battery (batteries not included) with a super long standby time of over 6 months and can be easily replaced for long-term use. Its delicate and elegant appearance makes it look like a piece of art. [FIND YOUR ITEMS] The key finder is a great gadget to help you search for and locate items you frequently misplace. Simply attach it to your luggage, wallet, keychain, or pet. If you can't find your belongings, double-click the button in the app, and your phone will beep to help you find items quickly and easily. [COMPATIBILITY] You can check the location on a map when the anti-lost device disconnects from your phone; it supports iOS systems and Android 4.3 or higher (requires Bluetooth 4.0). You can scan the QR code included with the manual to download the software.