Product Description Recommended training steps: When a dog behaves badly: 1.Use the Beep mode to warn the dog with the sound; 2.If the dog does not respond, use the Vibrate mode; 3.The Vibrate mode can have a good training effect for some dogs and stop their bad behavior. If the dog does not react to the vibrations, briefly use the electric shock mode (the intensity is adjustable, which is completely safe for the dog). After receiving the various warnings from training, the dog may stop his bad behavior each time he hears the audible warning. In general, you will no longer need to switch to vibration or electric shock modes. 100% waterproof receiver. It works even if it doesn’t. it is submerged in the water, which allows & agrave; your dog to swim or bathe freely with the collar. 800 meters of reach The training collar & agrave; distance uses the RF434Mhz frequency to provide a range of up to & rsquo; & rsquo; 800 meters, Easily train your dog in the park or yard. Fits & agrave; all