I bought this at PetSmart, unfortunately it doesn't work ...
937455
I bought this at PetSmart, unfortunately it doesn't work. I took it back after two weeks of giving it a try.  The nine volt battery wasn't powerful enough to make a loud enough sound to stop neighbors dogs from barking.  Once I used a Dog Silencer video from  YouTube  on  my phone  dogs stopped right away.
1054362
It Doesn't work. Incredible. Like I bought something that won't even turn on?!?? It was Damaged!
2680394
I purchased this product numerous times and it used to work;  however,  my 3 purchases have been a waste of money.  I don't know what happened,  but it no longer works on my dogs.
2758202
Well... It doesn't work. Buy something else.
4246005
I got this item, plugged it in and it doesn't work... I can't return it because it is too expensive to go through the process... This item is off no use to me.
3441204
I had high hopes for this..but unfortunately I feel like I wasted my money.  This doesn't work at all.  I should have bought advantix or frontline.  My daughter also bought for her two dogs and it worked for a month then stopped working.
1598440
When I received this, I followed the directions and filled and set up the collar as instructed.  It did not work at all!  I changed the battery and it still won't spray.  I went online to return it and Amazon won't let me return it because it's "hazardous materials".  Well, how could it have been shipped in the first place if it was hazardous????  It's only hazardous one way????  I guess I'll be calling the company directly to see if they can help me.  It's annoying not being able to return something that costs almost $60, especially when it NEVER worked!!!
4155239
I set up this unit exactly as stated in the directions. At first it did not work so I changed the battery just in case that was it. But, even with the new battery, it did not activate when the dog barked. But I noticed several instances where she wasn't doing anything and it would activate. I've asked to return the item. But, I'm stuck with the extra batteries I bought.
1864253
I have two dogs and i give this to both of them. We've been giving this to them for a few days now and unfortunately, it does not work at all.
21633
It is defective, it was installed today and it does not work, it will not activate, I will be Returning
272591
Doesn't work, the dog steps on it and just looks at me. I put my hand on it and 1 out of 10 times I get a zap. If it zapped all the time it might work but it doesn't I just wasted a lot of $ .. Not happy.
4826738
This purchase was a waste of money because it does not work like it says it does. Do not buy this product , you will get more for your buck if you buy similar product at Petsmart .
4878404
I bought this item and charged it and used it as the direction advised. I then put it on my dog and when I activated it nothing happened. I recharged it as stated on the directions and again it failed to work. I would never buy another item from this company. It was not amazons fault. It was a product defect.
4420803
I did not buy from Amazon but I bought it from Petco. As soon as I got some batteries, it worked for a bit. But then I heard a weird crack sound and it would not turn off at all. I tried taking it apart but there was nothing missing or broken it just would not turn off no matter how many time I scrolled the button.
1085104
It worked well and really stopped my dogs bad behavior until it stopped working. I've changed the batteries and the lights are all on but it won't work.  Boooo
3438757
This product does not work. It would cost more to return it than I paid for it, so I will not return it, but I cannot recommend buying this product.
165467
I've used this product before, especially to take kitties to vet. This one didn't work. Think it was too old. The coupon on the inside was also long expired. Hope my Comfort Zone with Feliway Refill is working. Hard to tell. Must say Amazon seldom disappoints, but this one sure did.