Alternative Correction Dog Shock Collars give you the option to use a different method of discipline other than shock stimulation. This is accomplished in a few different ways, the most effective ones are sold by us and they are the ultrasonic and spray technologies. Both of these are fine options for anyone training their dog, so it is really more of a preference of the owner but we would encourage you to think about the dogs personality when considering be you’ll know better than anyone which method of alternative correction will work best for your dog.