Brand? Model? Cost? Source? I need one!
Can't lay hands on it right now. My MIL bought it at IIRC Big Lots for about $3. Two of our dogs go running when we hit it, but the other just tightens his jaw a bit. It is blue, and about 1.5" x 1.5" x 3". 9v. battery. I will post when I find it. Just got home, and things are all over. I have seen them in those catalogs that my MIL gets with all that crazy stuff in them.
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