Your search for the best dog doorbell is finally over. When you purchase your our bell today here's what you should do... When that cute little box from amazon arrives, rip it open. Take out the bell and remove it from it's packaging. Grasp it firmly in one hand and give the bell a tiny shake. Notice the pleasant chime it makes. The clear tone can easily be heard from other rooms. The included instructions will guide you step-by-step on how to train your dog to use the bell. Your bell includes two screws which makes it easy to put the bell at the perfect height for your dog. What separates our bell from the competition? It starts with safety and quality. Jingle bells were never designed to be used by pets. They contain several slots which your dog's claws can become stuck in which is dangerous. Our solid metal bell contains no slots. Unlike other bells that are made with thin ribbon that can easily fray our bell is made out of solid metal. Bells that hang off door knobs may not hang low enough for puppies or small dogs to reach. It's this attention to detail and design that separates us from the rest. It's because of this we're able to make a guarantee unlike any other you've seen for dog door bells. Try our bell and if it ever breaks or your dog simply is in that 5% that can't be trained to use it return it for a full refund of the purchase price. So order now and when you do consider getting two... One for inside and one for outside.