Spray No Bark Collars provide a great alternative to traditional no bark collars and is just as effective as their counterparts. Training with spray no bark collars is a breeze and suitable for all types and sizes of dogs it’s perfect for an owner who has a wide range of dogs. The tech behind these products is simple enough, if the dog barks it gets sprayed which over time will teach it to not bark. It is important to note that spray no bark collars are only effective as long as they have spray in the unit so be sure to purchase refills so you don’t run out and come home to find that your dog has been barking away all day driving the neighbors crazy.