The E-Collar Team are the innovators of the use of low level stimulation training collar to achieve superior training results without undue stress on the dog. The proprietary stimulation utilized is “blunt” not “sharp” which provides less stress on the dog while still providing sufficient incentive for the dog to comply with your training collar remote command. Our large dog e-collars provide the highest and cleanest stimulation available to control the most stubborn and resistive dogs. We have the most reliable and fastest wireless link in the industry, when you push a button on an E-Collar Technologies product, the training collar responds instantly-only trust the best.