Review on Training Rechargeable Waterproof Adjustable Vibration by Jessica Lopez

Sometimes (about 40% of the time) my dog doesn't mind the shock setting of the collar at all. The beep and vibration work with no issues, but I'm pretty sure the knots are just losing contact with the skin as my dog goes about his daily doggy business. I have tried changing the knot caps to the larger sizes provided and I have the collar as tight as possible to keep 2 fingers between it and my dog. I have made sure the remote and receiver are fully charged and properly synced. I don't know what else could cause nodes to be inefficient.