Nearly all commands are taught with a clicker and a food reward (positive reinforcement). This develops a very consistent, reliable dog by creating the desire for a positive reaction. Although counterintuitive, using the term "negative" in animal training does not mean it is bad. The negative reinforcement can simply mean something is taken away. So when using the DT Systems H2O 1820 collar, the vibration is taken away. We hold the vibration button down and wait until the dog touches the target, help them if needed, then release the button, taking away the mild, effective form of negative reinforcement.