Compact and portable, suitable for a variety of needs.Support family management and device sharing among members.It supports recording the connection status of the mobile phone and the anti-lost device and recording the last disconnection position between the mobile phone and the anti-lost device, quickly determining the lost location and marking it on the map.After the mobile phone and anti-lost device are bound, put the anti-lost device and the items together. If the mobile phone reminder function is turned on, once the anti-lost device cannot receive the Bluetooth signal, the mobile phone will receive an alarm message pushed by the APP and ring.Adopting high-configuration and sensitive smart chips, lower power consumption, faster calculation and more accurate positioning