The YS-300 and the YS-500 do not completely stop barking; they only limit bad barking. Both the YS-300 and the YS-500 sense vocal cord vibrations when your dog barks. When dogs bark excessively, the YS-500 and YS-300 provide a mild electronic correction. Your dog will learn that it is being corrected for excessive barking and it will stop the bad behavior. Both Dogtra bark collars are completely safe for your dog; correction does not cause any physical harm. Eventually, your dog will know not to bark even when it isn't wearing the YS-500 or YS-300.

The Dogtra YS-500 is completely waterproof so it can be used indoors or outdoors. Because the unit only responds to vocal cord vibrations, your dog will not be corrected when other dogs bark, which makes this collar perfect for kennel situations. Only the dog wearing the collar will receive correction for barking; other dogs in the vicinity can bark without receiving correction.

This model was designed for medium to large breed dogs with any temperament and has seven levels of correction. It has a light weight, comfortable collar; it only weighs 6.6 ounces. The dimensions of the collar are 2.63 inches by 1.81 inches by 1.14 inches. Like all of Dogtra's collars this unit has quality electronic parts and runs on rechargeable NiMH batteries. The battery charger is included with the YS-500.

The YS-300 model has the same features as the YS-500 but was designed for small to medium sized dogs. Unlike the YS-500, the YS-300 has low to mid-level power and a smaller receiver which is more comfortable for smaller dogs.

Dogtra listens to their customers. When customers asked for a less demanding electronic training collar that costs less but has the same features as the 1900 and 3500 training units, the 1100 NC Dog Training Collar was introduced.

The 1100 has a waterproof collar and a water-resistant transmitter. Both are light-weight; the 1100 collar only weighs 4.9 ounces, and the transmitter weighs 4.2 ounces. The collar has a non-exposed antenna and a positive action on/off switch so the collar can't accidentally turned off during training in the field. With a half mile range, you don't have to be right beside your dog to provide efficient and immediate correction. The 1100 has both momentary and constant correction and was designed for medium or large sized dogs.

Dogtra and K9 Electronics stand behind their products. The YS-500, YS-300, and 1100 all have a 30-day money back guarantee. All products, including the YS-500, YS-300, and 1100 have free shipping.