Instruct: Classify Amazon reviews into positive or negative sentiment
Query: does'nt work

I bought this collar at my local petco, I liked that it was not sound activated and it was rechargeable. I put it on my dog, she is a 60lb yellow lab. She was not bothered by it at all and barked away. I followed all the company directions to no avail and then called Innotek. My call was answered quickly the representative was polite and took my information then sent out a replacement unit asking only that I send back this unit, post paid by them. However my dog still ignores the replacement collar. I have another innotek collar that is radio controlled, my dog respects that one although it doesn't have much range, I think it's there cheapest model.I also tried another brand bark collar off the internet, cheap. It worked but it was sound activated and my other dog set it off or her tags hitting her food bowl could set it off. I would put it on occasionally, but it ate batteries and soon fell apart.