Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Useless if batteries are dead and customer service gives run-around!!

We have had the collar for one month and have gone through several sets of batterys. With 3-4 uses a day the collar lasts about 6 hours - with no use it lasts 2 days. What the hell good is this? Also, replacing the batteries is not a snap - two screws have to be manipulated and the battery holder removed. If this only needs to be done every couple of weeks or so, no big deal but if you are training your dog you are constantly taking the collar off and putting it back on so the dog starts connecting the collar with punishment - not good. Customer service gives run-around if you start talking refund or exchange. This outfit knows it is selling a faulty product because of the battery problem but continues to hustle it. My advice is to find a reputable company with a reliable product.