Does your child will run around? youll know when the children in your sight。
This program use wifi connection, and then calculates the distance based on the strength of wifi. You need a phone to use a portable Wifi hotspot. The childs mobile to connect to your portable Wifi hotspot device. The apps can display the distance between the phone and the Wifi hotspot device.
Instructions:
Where Child need two or more mobile.
A mobile for Wifi hotspot. A mobile needs to connect to Wifi hotspots.
Two phones need to turn on Where Child.