Thankyou all for your insight. I was thinking that It would be great for when we go to events and stuff If I could find on small and light enough. I am sure that technology will get there eventually I just cannot seem to find one small enough for a yorkie. I think that it is such a good idea.
I have known so many dogs that have gotten loose, my mom for instance just found by chance a dog that ran away 8 years ago. He was local and the people who found him tried to find his original owners. he is a happy and healthy and extremely lucky dog. If he had been microchipped of had one of these colars (or both
) He would have been found.