USCAMEL Bark Collar for Dog, Bark Collar for Large Medium Small Dogs, Auto Barking Control Trainning Collar 4 Modes Shock Collar Waterproof. If you have concerns regarding your dog's non-stop barking due to behavioral issues, the dog bark collar with 4 modes and 8 adjustable sensitivity level may meet your need. Barking collar for dogs will auto intelligently detect your dog's barking as well as filtering out potential unnecessary noise to avoid any false triggers. With time, using these training collars will cause your dog to learn to associate with the stimulation and gradually avoid the behavior. This dog collar is suitable for all breeds. This rechargeable dog shock collar with a 300 mAh built-in battery fully charged in about 2 hours, the dog bark collar can work 21 days. Last but not least, the dog collar is IP67 water-resistant which allowing your active dog playing in the rain.