Works well for what we use it for. My dog stays in the yard with just the beep for warning. It was a little difficult to set up and I need to keep testing to make sure the connection is there before I put it on her, but for the price it does what we need it to. This one has not slipped off, our last one did. The receiver box is compact which is good. It has dropped and still works just fine. The last wireless collar I bought (not this brand) one of my kids dropped the receiver box on the sidewalk and it no longer worked. That set was more expensive than this one, but this set seems much more durable.