The NB IoT Tracker tracks and notifies you of your child's location in real-time. The child may also send an emergency SOS if necessary. The smooth, rounded, marshmallow shape was designed with the safety of children in mind. The muted pastel color was adopted to give children a sense of psychological stability and is easily matched to a variety of clothes and bags. To reduce loss caused by the carelessness of children, two types of designs are available: a key-ring which can be put on bags or clothes and a necklace with an easy change ring.