Features 1. You can set a lost reminder. When an item is lost, the phone will receive a reminder. Whether it is a wallet or a key, you can avoid losing it. 2. Widely applicable, suitable for bundling keys, wallets, card holders, bags, suitcases, car keys, headphones and other easily lost items. 3. 75dB loud volume reminder, can assist the remote control to turn on the sound reminder to find the item. 4. Historical positioning function: After the item is lost, the location of the item when it appeared last will be displayed. The next time other iPhone devices using Find APP appear around the device, the latest location of the device can be provided. 5. The product is very power-saving, the built-in button battery has a life of more than half a year, and the standby time can be up to 1 year. It is also very simple to replace the button battery! Specification Style: roundness, quadrate Material: ABS Size: 10 x 10 x 2 cm Weight: 36 g Package Include: Locator x1 Instruction manual x1 Battery cover opening tool x1