Safely switch mode, teach you basic obedience commands, and solve uncontrollable behavior problems of dogs. Avoid leaving the collar on your dog for more than 12 hours a day. If the collar has not been used for an extended period of time, make sure the collar is fully charged before leaving neutral, this and a month of charging will help extend battery life. Waterproof training collars allow dogs to play freely. It is not afraid of wading, not afraid of mud, and meets the needs of multi-scene training, allowing you to obtain maximum flexibility in outdoor activities without damaging the receiver. It is not cumbersome and meets the different needs of small and medium dogs. Product color: black Product size: 18154CM Shipping Quantity: 1 Piece