The SportDOG SBC-R collar is world's best bark collar suitable for dogs above 5kgs and 6 months of age. The collar has 10 levels of correction and 3 modes of operation; User-selected mode, Temperament learning mode and Progressive Correction mode. The SportDOG SBC-R is easy to operate, waterproof, and rechargeable. The collar is also suitable for multiple dog environments as there is no chance of being activated by another dog's barking. The collar module features an advanced vibration sensor that detects the vibration of your dog's vocal cords as they bark. When your dog barks, the collar delivers a momentary, safe static stimulation through the contact probes. With consistent use, your dog will learn not to bark when the collar is on.