I was initially a bit dubious about how effective this would be, but thought that for the price it was worth trying. Glad I did. Worked very quickly to reduce barking by my German Shepherd (who would previously bark loudly if anyone was on the phone - not helpful when you are on conference calls!). I am selective when I use it (happy for him to bark to e.g. announce visitors) so just put it on when I need him not to bark - and for that it has worked well. Wondered if the two prongs might be uncomfortable, but I have seen no sign at all that they bother him whilst wearing the collar. Based purely on my personal experience with my own dog...

This collar has solved the problem of my dog barking outside at every person, car, and neighbor’s dog. It’s such a relief. I tried a few other options from Amazon and this one for a two-pack was the best price and works great. The battery lasts around 2 weeks at a time, which I can hardly believe! Another one I tried needed to be charged almost every day! Try this one, I don’t think you’ll be disappointed.

These collars worked as soon as I put them on 1) 10 lb. Chinese Crested Puff and #2) 35 lb Pitt mix. These little lovies were running across the deck barking at the squirrels especially annoying late at night when they thought they heard something. I don't leave them on all the time, just when they begin the behavior again. It seems to humble them but they don't relate this to me. I use the vibration on 2, and the shock on 0 for the Puff and low for the Pitt. I do recommend.

I have two dogs that bark like crazy and I order these because there come in a set of two and I am so glad I did there works great my dogs have learned very quick with them and there start barking within a few days you can put them A vibration mode or a shock mode I have justUse the vibration mode and my dogs learned From just that there will work on a small or medium and large dogs with no problem

They work but sometimes when my 1 dog shakes her head the ears flapping set it off. I’m not happy with the shock part. I tried it on myself & it did hurt but my 1 dog likes to set it off. So I just keep it on vibrate & that does the job to stop the barking & jumping. It’s worth it if you use it properly. Now they see them & I don’t have to turn them on all the way. It’s worth the purchase just beware of the size of your dog & test it on yourself 1st so you don’t hurt them please.

They hate me because these collars work! I received a complaint about my dogs' barking recently and had to resort to buying these. The collars give options for just a sound alert, vibration alert, or a shock alert. All I had to use was sound, and you'd think I had severely punished them. They hid from me all day long, making sure I knew they were upset with me. But even when I walked them after taking the collars off, they at least remembered that something negative would happen if they bark. I just received them two days ago, and not enough time has passed to really get a feel for the full effect, but so far I LOVE these....