1. Two-way anti-lost: Connect the anti-loss device to the mobile phone via APP software, then link the anti-loss device to objects, such as keys, wallets and other valuables, as long as these objects are within a safe distance of 10-20 meters away from you, your mobile phone and anti-lost device will alarm to remind you that you forgot something; 2. One-click search: Sometimes you can't find your key or wallet when you go out, you can click the "call" button through the mobile phone app, the anti-lost device will make a sound, and you can easily find the key or the portfolio by following the sound; If you forget where you put your phone, you can call your cell phone (except Mini) through the anti-lost device, whether your cell phone is silent, vibrates or shuts down, it will ring, allowing you to find it easily and quickly ; 3. Lost location: If your item was lost and you missed the reminder, the mobile app will automatically record the last disconnected position of the item, determine the lost location through map positioning, help you remind and quickly retrieve the item; 4. Sharing management: when the linked item is used by multiple people, such as TV remote control, etc., you can open the item search mode and share it on the patch configuration page; after sharing, the patch will work in the object search mode, only when searching. It will only be connected when patching. 5. Multitasking management: Android phones can manage 4-6 patches at the same time, and IOS phones can manage 12 patches at the same time; , and you can customize the naming of different items in the APP, which is convenient for management. For example, the anti-loss device linked to the key is named "key", and the anti-loss device linked to the wallet is named "wallet".