- Effectively reduces excessive barking using ultrasonic sound that only dogs can hear, ensuring no harm to their hearing. - Features 4 operation levels with 3 sensitivity settings (valid range: 4.5, 9, and 15.24 meters) plus a testing mode for optimal performance. - Ideal for both stopping your dog's barking as well as training puppies not to bark excessively. - Equipped with an internal microphone to detect barks from up to 50 feet away. - Designed for outdoor use, this ultrasonic bark stopper does not require a collar, making it easy to deploy without additional gear. - Suitable for all dog breeds and sizes, providing a versatile solution for diverse pet ownership needs. Use Scenarios: 1. Use it in your backyard to prevent your dog from barking excessively when neighbors pass by, ensuring a peaceful environment. 2. Utilize the device during training sessions with your puppy to curb unwanted barking behavior, promoting better habits from the start. 3. Place it in parks or open spaces where multiple dogs may gather, to help control noise levels and enhance the experience for all pet owners.