Modern ecollar systems allow the dog handler to carefully control the level of electrical stimulus that to dog experiences, which allows the use of an ecollar in conjunction with positive reinforcement dog training. This joint training methodology can produce faster, more consistent results that allow dog and owner to communicate reliably at a distance. However, because every dog is different and you’re introducing a new sensation, an experienced dog behaviorist should be involved in the process. An experienced dog handler can set up an ideal environment to test the dog’s communication threshold. They can also see subtle body language that helps to understand the dog’s emotional state.