Instruct: Classify a review into positive or negative sentiment.
Query: Not good for the long haul

We really liked this trainer at first. It did help to get our dog's attention and he nicely became more cooperative. However, it has never worked for a distance. It only works for about 10 feet. We've had it for over a year and have dealt with increasing problems. The batteries need replacing every two weeks, the shock works sporatically, and a couple of times the stimulation (shock) button stuck, which was not at all what we would ever want to happen. I would suggest you look for a collar with rechargable batteries and one for longer distances.