Material: ABS Ultrasonic Bark Control: The ultrasonic sound emitted by our bark stopper is inaudible to humans, but can be heard by dogs. This sound is designed to attract their attention, stop them from barking excessively and promote calm behaviour Convenient: Thanks to its compact handheld design, this bark stopper can be taken anywhere. Whether you are at home, on a walk or visiting a friend, you can quickly and easily activate the device to solve the barking problem Safe and reliable our Bark Stop is a safe and humane solution to excessive barking. It does not cause any harm or discomfort to your dog, but provides a gentle reminder to reduce their barking habits Applicability: This handheld device is suitable for a variety of situations such as outdoor activities, training sessions, or when you need to maintain a peaceful environment. It works effectively with most dog breeds and sizes. Battery powered and built to last: Our bark stopper is battery powered to ensure reliable operation when you need it. It is designed to be durable and offers a cost effective solution to excessive barking.