Having more control over your dog is what most dog owners would like to have. When it comes to dog training collars, you are in fact going to get that, more comfort and more control, and be able to lead your dog more effectively. There are essentially two main types of head halters available for dogs. One is called the gentle leader and the other one is called the Halti. Both dog training collars are effective with the gentle leader coming out in front by having a better design and more control. It has a much simpler design, which sits behind the dog