This mini ultrasonic dog repellent is a powerful remote training stop barking device designed for outdoor use, which helps you deal with unexpected dog interference in an efficient and safe way, and is a useful defense tool during outdoor activities. "This ultrasonic dog repellent uses advanced high-power ultrasonic technology, which can emit a specific frequency of ultrasonic waves without harming the dog, which is unbearable for the dog, so as to effectively stop its approach, which is suitable for driving away or stopping the dog's barking." Its small size makes it easy to carry, and can easily fit into a pocket or backpack whether hiking outdoors, camping or walking in the park. The high power distance function means that even at a certain distance from the dog, it can effectively emit ultrasonic waves to ensure your safety. This dog repellent not only prevents dogs from chasing and barking, but also serves as a training tool to help pet owners correct certain bad behaviors of their pets. It's easy to operate, one-click, and allows you to react quickly when you encounter a dog. In terms of safety, the ultrasonic dog repellent is harmless to the human body and will not affect other animals, which is in line with the concept of modern environmental protection and animal protection. When it comes to protecting yourself and others from barking, this mini ultrasonic dog repellent is your perfect companion, allowing you to enjoy the outdoors while keeping yourself and others safe."