The Alfaw Anti Barking Device is the newest and best-proven way to stop your dog from barking. This device uses the latest proven ultrasonic technology to emit an ultrasound sound that stops excessive, noisy dog barking. It can be used as a training device to help your dog become more obedient and develop good behavior. The Alfaw Anti Barking Device comes with a well-designed mini shape that is perfect for hanging or mounting on a tree, wall, or fence post to keep your dog from barking. It also features a removable battery that makes it easy to use and store.