Pfo is a brilliant company that sells gps bracelets. I wav browsing the web one day when I saw the ads for theese bracelets. And I actually bought some of them for my family. Now there's a way for worried parents not to feel so worried. They look really nice too which is good. So the bracelet lets you track the wearer of it through a computer. So I can really recommend that you check this out actually. I think it's brilliant anyway, so I'm going to use them.