This is a strong collar and very easy to use. I love the feature of being able to see the remote and collar life battery. I don’t have to stress or worry if the collar is charged unlike some other brands that don’t show battery life. I hardly have to use the shock feature because the warning signal and vibration are loud and strong enough. I have the level at 1 for shock and it’s plenty. I also like that it is waterproof and have had no issues when it’s exposed to rain.