This is the 2nd set of these units I have owned. I keep track of 2 cats and without these locators, we would have a hard time finding our cats when we let them go out. The range is excellent and will usually find the cat when within 400 feet or so. Batteries for both the hand held unit and the remote units are inexpensive so best to just replace periodically. Recommended!!

This is the best for cats. We have it on a very small cat, 2 year old. Best thing ever on a roaming cat. It beeps on her collar to let her know it's time to come in. She is now trained to know if she goes over the fence I will beep her collar and bring her in. She learned to stay in the yard so she gets more time out.

I use this on finding both my wife with Alzheimer’s and our dachshund in town around the house and neighbors' yards when they get out of our fence. It works fine. Small for my wife's jean pants watch pocket and my dog's collar. I slip the locator in my belt holster along with the cellphone so I've always got it with me; it's nice and thin.