Feature: 1. ： 2. Anti-lost Key Finder-Smart Key Tracker is an excellent gadget that can alert you when you are about to forget your belongings. Pair with the app and keep it running on the backend. Once disconnected, both your phone and key locator will ring to remind you, very suitable for traveling to avoid loss. 3. Portability and convenience-The smart key finder is compact and easy to carry. You can put it in your wallet as a wallet finder, or as a mobile phone finder or any other item finder and put it in your bag with your phone, bringing you convenience anytime, anywhere. 4. Find your items-The key locator is a great gadget that can help you search and locate items that you always put in the wrong place. Just hang it on your suitcase, wallet, keychain or pet. If you can't find your item, please double-click the button on the app and it will emit a tone to help you find your item quickly and easily. 5. Big gift bag-When you are busy looking for something, this key treasure hunt set is your ideal choice. Whether it's for self-use, or as a gift to elderly parents or forgetful friends, it will definitely refresh them. 6. Long battery life-Bluetooth key tracking device is powered by CR2032 battery, long standby time is more than 10 months, long-term use can be easily replaced. Specification: Wireless distance: 25mApplicable platform: fully compatibleInterface: Bluetooth 4.0Compatible platforms: for ANDROID, for iOSBattery capacity: 220 mAmaterial: plasticAdditional functions: photo, recording, alarm, anti-lost Package List: Anti-lost*1 Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2.Please allow slight manual measurement deviation for the data.