Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Upon arrival it didn't work.

I came across this item while hiking with my Lab in the evening. A person I passed had both her dogs outfitted with the collar and I was interested enough to ask. I then ordered one. When it arrived it didn't work. I took the time to troubleshoot it and found the battery was dead. Upon replacing the battery the collar works like a champ. My issue, any item you order should come in new and working order. I could see many of these being returned as faulty when all it was, a dead battery.