I remember posting a thread about this a while ago.... I think it's such a FANTASTIC idea. I was interested, not for him wearing 24/7, but we live on 3 acres and we have 90 acres behind us. I would like to let Jackson be able to run around (with me there supervising, of course) and be able to put the collar on him just in CASE. Unfortunately, they're all so bulky, the batteries don't last long, and there's a large monthly fee that you often to pay for the service.
http://www.yorkietalk.com/forums/gen...t-locator.html