Our K9 LLC offers a variety of Bark Collars and Remote Training Colors. We manufacture 17 different types – of different sizes, correction methods, and intensity of stimulus. Why so many, you may ask. The answer is simple: because there are a wide variety of dogs, with each dog being unique. Ask yourself this: can one bark collar really be suitable for a small breed, such as a Jack Russell Terrier, and at the same time be used on a big breed, such as a Rottweiler? Most sellers would like you to believe that it is perfectly okay. Our K9 LLC, however, firmly believes that the idea of it is irresponsible and unfair to dogs. Because Our K9 believes that dogs deserve best and what is most suitable and safest for them, we manufacture different collars which are suitable for a vast variety dogs – from toy breeds to giant breeds, from short-haired to long-haired dogs, from well-mannered noisy softies to stubborn seasoned barkers. Our K9 products are well-researched and tested, and thus, are surely safe, pet-friendly and effective.