The Doguard Anti Barking Device is a reliable and effective way to deter dogs from barking. The device features an ultrasonic sound that is loud enough to be heard up to 160 feet away. The anti barking device also has a long range of up to 160 feet, so it’s perfect for use both indoors and outdoors. The anti barking device also features an LED indicator, so you’ll always know when the dog is barking.