MAX & MOLLY Comic Smart ID Dog Collar for Medium-sized Dogs cool collars come with a built-in Smart ID Tag, which can be activated and monitored with the free Max & Molly Gotcha! App. With this app, you can build your pet’s profile, track their location, and even set up emergency contact details in case of an emergency. The collars are 100% adjustable and fit any dog, so there’s no need to worry about finding the perfect size. Plus, they come in a variety of cool comic designs that will make your pet stand out from the rest. Pick up one today!