Ultrasonic Bark-Stop Collar for Dogs (for Barking Control)

Pros: Easy to use

Cons: Alittle bulky

Other: Well worth the money and unlike others the batteries last and are cheap

Pros: Light, easy to put on dog.

Cons: Only works when you bump it. Ultrasonic beep doesn't even do a thing to the dogs.

Other: It's rubbish.

Pros: Simple, easy to fit, comes with batteries.

Cons: Too large for small, energetic dogs. My Terrier scratched it off repeatedly.

Other: Useful primarily for larger dogs with more attention-span than a Terrier. Keeping the unit on the correct throat area of a small dog is problematic, at best. Seems it's triggered by the Adam's Apple area of the neck, so a too-small dog makes it difficult to get reliable triggering.

Pros: I guess its easy to set up and everything.

Cons: I found it hard to tell if it was working. The box and instructions say different things.

Other: I found this item pretty useless. I put it on the dog once.. and its been on my shelf since.

Pros: My dog did react quite strong at first time using. Well my dog dont like strange voices at all. This ultrasound he hates.

Cons: Ultrasound "box" comes off too easy from collar.

Other: For this price it´s good deal!

Pros: Size. Price.

Cons: Not working on my small dog. Difficult to make it work even if the dog is barking.

Other: Maybe it works with big dogs, but it doesn't with my small one.

Pros: It's cheap
It does make a sound if your dogs bark (or if you bark yourself or blow into the sensor)
Works if your dog is sensitive to it.
Doesn't hurt your dog, so that's a big plus.
Those devices that give your dog a shock are awfull.

Cons: If you have a active (and small) dog, this thing might not stay in place.
My dog isn't sensitive to it at all, but we have a neighbour with a similar device, and he does respond.

Other: If you have a very barky dog, and are willing to spend 10$ to see if you can stop him. Try this device.
Depending on your dog, it might work or not. If it doesn't work, you can always sell it on ebay.

Pros: It's cheap and it works OK. It works based on physical vibrations, rather than sounds so other dogs barking or you yelling won't activate it.

Cons: Since humans can't hear ultrasonic frequencies, I'm not sure the ultrasonic setting works. It does have an audible beep when it's activated, but ultrasonic? My dog doesn't like either sounds so I don't know...

Other: Try it. It's only $10. What do you have to lose?

Pros: It does not work solely by producing the claimed 'ultrasonic sound'. It works by the association of a punishment (be it a "NO!", a "STOP!", a "SHUT UP!", a slap, whatever...) to the sound. After the conditioning is stablished, the dog will interpret the sound as the owner's reprehension.

Cons: As the previously reviewer said, it may not work under ultrasonic sounds. The sounds can be clearly heard by anyone, although it is slow, so it wouldn't probably bother you (your dog's bark surely is higher than the sound the product emits).
It may work better with some dogs, than others. It may be due to their way of barking. It did not work well with my dog, due to this reason, so I couldn't fully train him.

Other: You need to fully understand how it works. It does not work by simply placing it on your dog's neck. You must train your dog so that he understand that the sound means something.

Pros: I have bought some for my dogs. The price is very good, but could be a little bit cheaper as you can see in other places. In some dogs its works, in others they don´t take effect. It´s good that it´s chip and I had never been taxed.

Cons: Sometimes the box it cames was damage because this is very small. Some dogs as I said doesn´t like the sound. This is not a ultrassound, you can rear the sound in ultrassonic and a little bit higher the audible sound.

Other: Ok, but you can find best options, which are more expensive in Deal extreme website.