DOGTEK Dog Bark Collars my not be the widest of product lines but their design and implementation of the products is superb. Also offering a device which is sonic rather than standard stimulation methods gives you a great alternative for your dog. With DOGTEK dog bark collars you are getting a lightweight product that is simple and safe to use in teaching your dog when it is and isn’t appropriate to bark. This is wonderful and your friends and neighbors will greatly appreciate the improvements you dog will make through the use of DOGTEK dog bark collars.