DogWatch The SideWalker SW-5 Leash Trainer, Gentle Self-Teaching Electronic Dog Training Method to Stop Dogs from Pulling on The Leash 5 adjustable settings: 3 correction settings, vibration-only and Progressive. Progressive setting: begins at vibration and gradually increases to correction if the dog continues to pull. When the dog stops pulling, the SideWalker resets to the lowest level for the selected setting. Long-lasting, easy-to-recharge battery typically stays charged for several days. Low battery indicator. Lightweight. Waterproof (because dogs will be dogs.)