After trying several collars (citronella, vibrating, etc. ...
928866
After trying several collars (citronella, vibrating, etc.) this one seems to be working.  My 2 labs are quiet when I get home!  Hopefully the neighbors aren't mad at us any more because of the dogs' barking!
1125804
ahh works good when you can get the collar to tighten properly, can be bit of pain and annoying. otherwise good item
472069
We got this collar because our 7+ year old lab mix was barking so much, she was driving everyone crazy, including our 3 other dogs.  She has always been a huge barker but she just got to the point where it was really intolerable.  All the behavioral methods we tried weren't working, and I tried those other methods for a year before trying this!  This collar was recommended by our dog trainer specifically because it has a vibration only setting.  The first day, I set it on vibrate because she was trained to an invisible fence pretty easily so thought it might work at that level.  She noticed it but kept barking, so the next day I turned it up just to the next level.  She barked, it zapped her, she cried, then she shut up and she hasn't barked for the past two days.  I have it back to the vibration only setting because I don't want her to cry, and she seems to have gotten the message.  So, although I have only been using this for a week, I think that if you need to get your dog to be quiet, this will do it.  She is a 60+ pound dog with a big neck, and it fits her just fine even though it says small to medium size.
2447387
Yes this unit works.  The first shock scared the hell out him but got his attention.  It has a "Vibration Only" setting that in our experience works better than the shock. We've used the vibration only mode a total of three times and we no longer need the collar.  Be conservative with the shock setting or better yet just go with the vibration only mode.  This may require a bit longer to train but you'll feel a lot better about using the collar.  This is a really effective unit and it delivered results as promised.
2887972
Have had this collar only a couple days now. My lab is yet a pup, over twenty pounds, and I have two gates creating a space for her to be isolated as needed from visitors, grandkids putting all sorts of small toys on our living room floor.

I tried the Temperament mode first, and for my pup that proved not to be a good move. It progressively increases power with co tiniest barks til it's suppose to come to that stimulation the dog would stop. After she lept into the air yelping and I heard panic yelps I rush to remove the collar.

Perhaps as she ages, those settings that will train and clue the dog in will help. For now I am resorting to the manual mode. She panic and cried sometime at level "1"...And was quite shaken by the experience.

Some dogs temperament requires little discipline. Just knowing you are not happy was enough to punish out last lab. Others if course are near obstinate and seem to endure pain.

I put the setting to "0" which worked. But wondering if any stimulation actually happens with zero setting? She might have stopped barking just because the collar is and and her first bad rough experience. I'm assuming there must be some stimulation at zero, or else one might as well simply turn the unit off and get the same results.

So I have things yet to learn. The good news and thus this review is it got my digs attention and I think the modes give me enough options that it may be more training myself than my dog. This is going to work.

I would caution to start with the manual mode at zero, and slowly work up. I think the auto progressive increasing two modes may initially traumatize the dog.

Let the dog wear it when off, and low manual stimulation and observe what happens.
3302399
The one collar broke within the first few days :( the vibrating mechanism still works, but the shocking part doesn't.
2484198
Overall, I am pleased with the collar. It looks amazing on my dog, but its stiff and started to rub/irritate his neck.
4170881
Only 1 collar works.  I will be returning this product. Other collar works great and does a good job.  I would have gave this product 5 stars if both remotes work.  I will be going with a different brand because I no longer trust the reliability.
4322760
I don't doubt that this collar is effective for bigger dogs but I have a little pomeranian chihuahua and I don't know if she was just being overly sensitive, but she only wore it for 10mins. She saw another dog, growled, it vibrated, she kept growling, it vibrated again and then she persisted and it shocked her! She yelped and jumped and I had to lift her to calm her down. She was still whimpering so it shocked her again! I had to take it off and carry her home. I guess it was too strong for her. I've never put it back on her. Maybe she's just too small for the charge
1270610
My border collie still pulled like crazy and the strap at the chest part loosened progressively during our walk. I would have to stop and adjust it or keep a regular collar on and switch to that one to prevent the pulling and loosening.
1057524
UPDATE- I've updated from 2 starts to 4 stars ...KUDOS to customer service!!! They sent me a replacement and so far so good.  I will update again once I have been using it for a couple of months to see if I have the same problem as before. Thank you!!

Works when it wants to. I have to jiggle the collar and use vibrate to see if it's working before I put it on my dog. Not always reliable.
1157798
Originally got this because we have tried EVERYTHING with our 2 year old black lab to make him stop barking.  We've tried verbal scolding, squirting him with water, positive reinforcement (treats and verbal thanks) when he doesn't bark, citronella collars, and nothing has worked.  So we finally decided to resort to a shock collar.

We are college students, so when looking for anti-bark collars, we did not want to spend TOO much money, and the reviews here seemed pretty decent, so I thought I'd try it out.  BIG MISTAKE.  First, when it arrived, it had no battery.  Contacted seller, and they were gracious enough to refund 10%, which was about the cost to buy a battery.

Once everything was set up, I tried it on myself on the lowest setting, to make sure that it wouldn't harm our dog (merely spook him).  It wasn't bad so I put it on him.

It was nice that it gave the verbal beeping warning first, because that seemed to distract him and he would immediately start looking around and stop barking.

However, soon after, we noticed that if he shook his head, it would beep.  If someone slammed the door, it would beep.  If he bumped into something, it would beep.  With all of these triggers, I started to worry.  So I would only put the collar on if we knew someone was coming over so he would learn not to bark with someone at the door.  Same thing.  Only, I noticed putting it on him made him seem twitchy.

Now we no longer use this collar, because I think his twitchiness may have been from getting shocked when he wasn't supposed to.

This collar is faaaar to sensitive.  EVEN ON THE LOWEST SETTING!  So we will have to buy something better.
1918382
The vibrate function works great. There have been a few times that Ive wanted to actually use the shock function and it doesnt seem to work consistently. It has worked a few times, he jumps back and yelps but Ive tried it since then and nothing happens. Ive tried to shock myself with the collar and it doesnt seem to be delivering any shock. Maybe its defective, I don't know. Ive only owned it since Christmas so its brand new.
4116949
The collar does work, however the collar turns to the side a lot and it doesn't pick up the sensor. When it does spray it takes a good 3 barks before it works if it is properly positioned. If it is windy you can forget it working at all. The citronella also irritates her eyes, but that only happens when the collar is turned slightly and the sensor works on her neck.
2622074
Went to set it up, using flags as directed, and the collar would beep sometimes but not others, changed batteries and had the same problem. Put is back in the box and returned it.
1630880
So i got this product back in april and i tried it out and to be honest its not that great!! I am already looking at getting another one. when i got it i charged it and it seems to give a pretty good charge (felt that on accident) but the downside is my vibration doesn't work and all it has is one setting for the shock. Ya ya it has 6 different settings but its all the same level of shock. maybe if my vibration worked but it is what it is. What is the range on the receiver? does the collar ever trun off when you are not using it? I recommend saving your money and going to the store and talk to people who knows what is good. Good luck
3473158
Tried to introduce it gently, no luck. My terrier hated it, and fussed until she pulled it off over her ears.  Before then she ran around like a maniac, mostly backwards.  For her, at least, I think a transparent collar may work better.