Jim,

        A few years ago "Electronics Now" published an article that describes
a thing like this, I think the title is "Remote Control for your dog".

Ricardo Seixas

>Someone a while back listed some manufactures of those small ID transmitters
>that I think are used to implant under a pets skin.  I am looking for data
>on these devices so any source would be helpful.
>
>Has anyone ever used these devices?
>What is the correct name for these devices?
>
>Take care  -Jim
>
>