Practical Design: This is a great and fun way to train your dog/pet to learn to press the button when they want to go out or in instead of scratching or barking, teaching them to be \"good dogs\". All breeds, all ages, all sizes, all dogs. Easy to Activate: The dog bell is easy to activate. Only needs a light press or slide over the touch pad with their nose or paw. All sizes of dogs can do it and even cats can press it. As an energy-saving system, this bell will always be in standby mode with your dogs for years. IP55 Waterproof: Built-in waterproof rubber ring, environmentally friendly material with waterproof; heat and cold resistant, which means your dogs (or other pets) can press/push the bell at any time even if it's raining or snowing. Easy Installation: No wiring for dog potty training, you can place it anywhere in the house. And flexibly increase or decrease the receiver and transmitter according to your needs. So easy to match and use. Customized and Distance Control: Has 55 first polyphonic ringtones and 5 levels of adjustable volume, you can choose the sound of your favorite ringtones (0-110 decibels), Has doorbell ringtone, unique silent mode & do not disturb mode. Transmitter & receiver communicate up to 300 meters at home. If your puppy starts ringing the bell just to go out and play, you need to teach him that ringing the bell is only for potty time. When he rings the bell, attach the leash to him and take him to the place where you want him to do his business. Give him a few minutes, and if he does his business, praise him and give him a treat. If he doesn't, take him straight back inside. Over time, your dog will learn that ringing the bells means the door opens and they can go out to do their business.