ZNFSZ TOTIE Dog Bark Collar, Rechargeable Anti Barking Training Collar, No Bark Collar 7 Adjustable Sensitivity and Intensity Levels for Small Medium Large DogsFor any dog owner only a few days of training with this collar and your pup is free to roam outside. Waterproof collar IP67 waterproof, don't need to worry about taking this device off even your dog got loose to the local pond or in the rain. Fashionable looking Strangers would not ridicule you for using a bark collar on your dog. Training tool The collar fit your dog with lots of room to breathe. It has several different sensitivity level from 1 to 7