Multiple Training Modes - The latest version of the 2021 dog training device has an adjustable static shock mode, it is more convenient and effective for teaching your dog basic commands and solving behavioral problems. / p> Safety Lock and Light Mode - The keypad can be locked to prevent accidental static shock, allowing you to carry the remote control without accidents. The remote control also has a light mode LED that helps you find your dog at night or in a dark environment. IPX67 Water Resistant - This collar is ideal for water loving dogs like Golden Retrievers and German Shepherds. It can be used even in damp places. Note: It should be noted that the waterproof rubber stopper should be securely in place and please do not put the collar in water for a long time. Note: This range is in a straight line between the remote and the collar, with no obstacles in between. The range may be reduced otherwise.