Bluetooth Tracking Device- The Bluetooth anti-lost device is very convenient for searching or locating lost items, and can easily find your belongings such as wallets, keys, pets, etc. Convenient- Connect this device to the things you often misplace, use the Bluetooth anti-lost device to save time searching for things and keep your life in order. Alarm- When the Bluetooth anti-lost device is disconnected from the mobile phone, the mobile phone APP and the Bluetooth anti-lost device will sound an alarm to remind you at the same time. Convenient- Convenient for you to check the last position of the object on your mobile phone to help you find it. So you can open the map in the app and predict the approximate location of the lost item. Bluetooth- Bluetooth low-power technology, super low power consumption, standby for more than 6 months and convenient battery replacement. A mobile phone can manage up to 7 anti-loss devices at the same time.