House training is music to your ears with the Mighty Paw Tinkle Bells Dog Doorbell. Allowing your dog to communicate when it’s time to go outside, just hang these bells on the door, and dogs can be easily trained to swat the bells when nature calls. It easily hangs around any doorknob with a loop that snaps into place with a reinforced rivet, and the nylon ribbon is both attractive and durable—standing up to tugs, scratches, and bites. And most importantly, the silver-coated bells make a pleasant, clear sound that can be heard from other rooms.