If you have a dog that has learned to TUNE you out, or perhaps you’re working with distance or maybe you have other things competing for attention in the environment (other animals, etc) sometimes you need to teach a different cue… and that’s where whistles come in! I personally like using dog whistles since they can be heard from a distance and are quieter than a regular whistle. The nice thing about training a second cue for recall is it can be used in an emergency too. The whistle is a unique