Potty Train Your Pooch in Days with PoochieBells. No more accidents by the door with PoochieBells, dog doorbell training tool. The original designer dog doorbell. Quickly and easily train the family pooch to ring when it's potty time. The use of bells in training dogs has been a proven and successful method endorsed by pet industry professionals for years. Each PoochieBell comes complete with easy-to-follow instructions, two sets of strategically placed bells for both short and long legs and a fun, bling dog bone. Top loop fits any doorknob or small hook.