ONLY HIGH TECH bark control collars use our unique and extremely effective technique of no bark training to end barking once and for all in the shortest time possible. We have a complete line of bark stopping collars to cover every situation. All of our electronic bark control collars employ sound as the basic stimulus because it is well established that animals learn more quickly and retain a better memory when the desired behavior is associated with a sound. Our more advanced models progressively increase the sonic stimulus as barking persists. Our most advanced models employ gradually increasing electric shock stimulus along with the sound to stop even the most stubborn barkers in a humane manner. Each model is designed with state of the art, microprocessor controlled, circuitry that is extensively tested to prove its effectiveness. Browse though the models listed below. You are certain to find a product that will stop your barking dog.