I really like the key finder, I bought it because I'm blind like my wife. Our cat got out and we couldn't find her. I had to ask a family member to come and find her. My wife got the idea to get some sort of key finder and put it on the cat's collar so we could page her and we could find her when she came out again. When we received the key finder in the mail, we put it on the cat. We let him beep a few times to get her used to it. For this purpose it works very well. We received four receivers with the product, each with a battery. It was very light and didn't bother the cat when we put it on the collar. I highly recommend this product. The seller was very helpful. She explained to me via email that sometimes the battery doesn't work when you first get it. She told me to remove and reinsert the battery and then try the product again. The seller even included a PDF copy of the manual in the email. It helped me a lot because of course I couldn't read the printed version. I would buy anything from them again. Larry The seller even included a PDF copy of the manual with the email. It helped me a lot because of course I couldn't read the printed version. I would buy anything from them again. Larry The seller even included a PDF copy of the manual with the email. It helped me a lot because of course I couldn't read the printed version. I would buy anything from them again. larry
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