Hello all! So recently my gf lost her iPhone at the school cafeteria (ik omg how could she) but she got her a new moto X and shes loving it. However I was wondering if there are any blue tooth devices or tags that stick to the phone then would alert her when she is out of range. Maybe a bluetooth thing stuck to her backpack then rings when the backpack is too far away. Or she can press a button on it and it will ring. Not sure if there is an existing product. I saw tile and sticnfind but they r mainly finding other stuff such as keY's and whatnot. So any suggestions for a phone leash thanks