Where Child

Does your child will run around? you'll 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 Wi-Fi hotspot. The child's mobile to connect to your portable Wi-Fi hotspot device. The apps can display the distance between the phone and the Wi-Fi 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.