<p>Features</p> <p>1. The appearance is designed like an alarm clock, and the luxurious outdoor ultrasonic bark stop can be hung on trees, anywhere in the house or in your yard. It can be hung, placed on tables or other places at will.</p> <p>When the luxury outdoor ultrasonic bark stop alarm detects excessive barking, the microphone will sense the barking and activate the component. At this point, the product will emit a safe high-frequency ultrasonic sound that dogs can hear but humans cannot. Dogs will stop barking when stimulated by sound. Because ultrasound can make dogs feel uncomfortable, they will stop barking.</p> <p>3. Designed specifically for outdoor use, the outdoor ultrasonic bark arrester is durable and waterproof. There are three sensitivity levels (effective range from 4.5, 9 to 15.24 meters) and one test level. The outdoor ultrasonic bark arrester has a power indicator that can be set to \</p>