Imagine you are at home and friends are visiting. The doorbell rings, "Ding-dong", and your friends say, "Someone is at your door," and you say, "That's my dog." How do you think they will react? Well, we heard all kinds of reactions, but they all started with "Wow!" and ended with giggles and laughter. Dogs scratch and damage doors to be let in or out. It is frustrating for us and our dogs. Pebble Smart Doggie Doorbell transforms this common and vexing problem to a fun training opportunity. It is easy to install and no wiring or tools are required. With the built-in treat holder, dogs can be trained easily to ring the Doggie Doorbell. It is a new way for our dogs to communicate their needs to us. It is a fun way to train our dogs and have a great bonding time with them. Learn more and watch demo videos at www.pebblesmart.com. We strive to provide the best customer support. Contact us via our website if you have questions or need help with the product.