Bluetooth anti-lost device

This anti-lost devices is a low-power based product based on bluetooth 4.0. Through the mobile phone-specific APP software, the items that are easy lost by user ( such as keys, handbag, etc) are bundle together to prevent the loss of the items; even you can hang the anti-lost device on the children that the children are at you. Within the line of sight, or hanging on your pet, you don’t have to worry about losing them. Instructions included. Multiple colors available.