SportDOG Add-A-Dog® Collar Receiver, SDF-R

We purchased this system due to the fact that we have 5 acres of open land and lots of neighboring cows for our dogs to chase. With my 2 older dogs, who have always been able to run loose, we took about two weeks of training them as instructed. They had no problem in learning. We then brought a young dog to our home who had always been enclosed in a yard with chain link fencing. Trained one very briefly, on lowest setting it ran thru boundary fencing, turned up the power, and along with the flags, the dog never ventures near boundary. Two very young strays, with whom we could not train due to the fact that they would not do the leash....put the collars on them, they accidentally went into boundary, with our visual supervision over a period of about a week, and they did not attempt doing that again. We then had to put boundary fencing around the area of where we park our cars, due to the destructive natures of the younger dogs who scratched several cars chasing a cat, they do not enter the boundary zone....in fact, when flags went up, they totally understood their meaning!!! excellent product that works with any age or stubborness of dogs. i highly recommend this product. Also, works just as well after water exposure, as our dogs love the pond, water does not affect the products effectiveness. i give this system 5 stars.

We already have the sport dog in ground fence system and love it! We got this collar for our little dog who is less than 20lbs. It is big on him but can be cut down to size. It fits our Husky perfectly. The little dog was able to get used to it quickly. I had contemplated the smaller versions but with proprietary batteries, it seemed like a poor idea. These collars take a standard 9v and the batteries have lasted nearly a year so far in our other collar without replacement. It is a good system, but not for dogs under 20lbs for sure even though they say as long as their over 10lbs.

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I love the invisible fence system these people sell, it was easy to instal and maintain. My only gripe would be on the collars themselves. The screws absolutely suck. Maybe it is just my dogs or even me, but the screws get dirt/sand/debris lodged into the head of the screw and just underneath enough to make turning the screw a pain in the rear. When I need to change the battery, I try to clean the screws out to the best of my ability so I can get a screwdriver in. This is a pain and it seems like there should be a better way. If anyone has any suggestions please feel free to let me know.

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I have the full setup from Sport Dog, the underground fence sending unit and four collars. If you click on my name you can read my review on the whole setup. These Collars are by far the best on the market. They are adjustable as far as the correction goes which allows you to turn the shock up or down or to vibrate only. The material the collar is made from is bright orange, somewhat reflective, and very durable material. The collar uses a regular 9 volt battery which last a long time, at least a year. Many of the other collars from other companies use large watch batteries which only last a few months. My collars have had plenty of abuse and water time. They are still working just as they did when they were new.

If you have a large dog and are looking for an underground fence collar, this is by far the best one available.

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Awesome collar and in-ground fence system! We bought a second collar when we got our second dog and the receiver works great! We have two big golden retrievers (86 and 90 lbs) who like to run, play and visit with everyone so it was essential that we keep them contained. The collar has adjustable shock/warn strengths. We had to amp it up when the flags disappeared during the snowy weather but we can turn it down now that they've learned not to go past the boundary. One REALLY nice thing is that the battery is a regular one that you can buy anywhere and is much less expensive than some of the little disc batteries required for products like this.

Two reasons to not give it a five star rating: (1) For the amount of money you spend on just one collar, it would have been nice to have the receiver be a little bit smaller. It's just kind of bulky but I would think more so on smaller dogs. (but then the battery would have to be smaller and probably more expensive) (2) We have had the fence system for a few years now and the collar that comes with the receiver cracks and needs to be replaced about once a year. Perhaps not though with more docile dogs but ours play with each other every day and sometimes they get a little rough.