This automatic bark control dog collar stops unwanted behavior just as reliably and effectively as higher-priced models. Features seven levels of stimulation, activated by dog’s vocal cords, and a brief "relaxation" period between corrections. At the first bark, the correction is at the lowest level followed by a 2-second relaxation period. If the dog continues to bark, strength increases to level 2, with another relaxation, and so on, through 7 levels. When the dog does not bark for 5 minutes, the dog collar automatically backs off by one level, so that the next correction he receives will be lower than the last one, as a warning. If the dog then resumes barking, the unit will again begin to increase levels, with 2-second rests in between corrections, to allow time for the dog to associate the correction with the barking.

Nylon water-resistant dog collar fits necks from 9" to 20". Includes one set of probes and 6-volt alkaline battery. Now price won’t keep you from administering needed training! Weight is 3 oz. Appropriate for dogs 5 lbs and over and 6 months old and up.