Easily find things and say goodbye to misplacing them. For certified, supports for Eind My network, all for devices (for //) around the world can help you find lost items. Keys are missing - When the key is within the Bluetooth range, voice wakes up , and MiTag emit a beep to locate the key position, and the key position can be easily found by voice. Disconnect reminder - Turn on the lost notification, whether it is a wallet, key or other personal items, once the item is left, the phone receive a reminder to avoid loss! Ultra-thin design, simple and light, easy to carry. 365 days of long-lasting battery life - Button battery, easy to replace, 1 year worry-free after 1 replacement. Easy to use in any scene to find things, small and light, can be used anywhere. Colour:Black Material:Plastic Package Contents: 1 * anti-lost device Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.