Help your dog learn to be quieter with the Dogtra YS600 Bark Control Dog Training Collar. Activated by your dog’s own barking, it puts out an electrical stimulation thats adjustable to suit his temperament, helping to modify barking behaviors. Setting the intensity is easy with a built-in dial, and you can also set it to send out a vibration-only sensation for a no-shock alternative during training. Thanks to its lightweight, contoured design, its ultra-wearable for pups as small as 35 pounds and ideal for everyday use. Its perfect for training, features a waterproof design, and includes 2-hour rapid rechargeable batteries.