【Smart Anti Bark Collar for Dogs】This dog anti bark collar no longer triggers false triggers. Smart sensing design can detect dog barking at specific frequencies and decibels, and filter out other irrelevant sounds. Growling, shaking, scratching or barking at other dogs will not trigger the collar. The anti bark collar for dogs only triggers when your dog barks. 【Safety Anti Bark Collar with 2 Modes】Our dog anti bark collar works in automatic mode, with a combination of sound and vibration modes, which can effectively and safely prevent dogs from barking. It helps your dog understand that it is not advisable to bark when it vibrates and beeps. Useful when you are away from home and your dog is alone. 【Adjustable Sensitivity】This dog bark collar has 2 “+-” buttons to adjust the appropriate sensitivity from 1-7 levels depending on the size of the dog. The higher the sensitivity, the easier it is to trigger the collar. Level 4 is the most sensitive setting. 【Rechargeable Waterproof Bark