The Furryastro Anti Barking Device 3 Ultrasonic Transmitters GQ-03 is a high-quality solution for controlling excessive barking in dogs. With its ultrasonic function, this anti-barking device emits a sound that is unpleasant to dogs, but not harmful, to discourage barking. The device is easy to use and comes with all the necessary accessories such as a USB charging cable, mounting screws, and a manual for guidance. Designed by the brand Furryastro, this product is a reliable tool for training and obedience in dogs, manufactured in China.