[Rathji]

I am looking for a device that I can put on a kid, in their backpack/jacket etc that will allow for them to be tracked from a PC or smartphone.

Ideally this device would require no user intervention, require limited charging and be small enough that it won't cause issues as far as weight goes.

I realize that a smart phone can do the same thing, so this might actually be an option if the cost is low enough.