<p>This automatic ultrasonic bark control device features advanced sound activation technology that intelligently detects dog barking and responds immediately. When barking is detected, the device automatically emits high-frequency ultrasonic waves that are barely audible to humans but serve as an effective reminder signal for dogs.<br />The product is designed to be lightweight and portable, weighing only 85 grams, with an adjustable lanyard for easy hanging in yards, balconies, or any indoor location. Three stylish color options available to blend seamlessly with various home environments. Simple to use - just install batteries and it&#39;s ready to work. The ultrasonic training method is safe and humane, causing no physical harm to pets, making it an ideal alternative to traditional bark collars. Suitable for all dog breeds, particularly effective for pets that are often left alone at home. Waterproof and dustproof design ensures stable operation in outdoor environments, while low-power technology provides battery life of 3-6 months. The perfect assistant for pet owners to train quiet behavior, resolve neighbor complaints, and create a harmonious living environment.</p>