ColPet Dog Training Collar, Rechargeable and Waterproof Remote Controlled Collar with Beep/Vibration Electric E-Collar Dogs

My dog isn’t even phased by any of the functions on this. Might work for others, but not for big dogs.

It was working fine until it wasn't/ I've been using it occasionally. The remote still works, but the collar is not charging anymore.

Does exactly what it needs to do

It says fits all sizes and I have a pit bull and it definitely didn't fit him. Wasn't even close!! Really disappointed.

Never got this to work

Automatic sensor does not work more than half the time to detect barks, battery dies very quickly.

Four stars for being a well developed product. But if you have a brute dog with intense focus, this device doesn't do the trick. I'm looking for something that snaps her back when she sees cats or small dogs...

Sound and lights work but can't get it to vibrate which I need for my dog.