Ultrasonic dog bark stopper, automatic, waterproof ultrasonic device against dog barking for small and large dogs

【Anti-bark device with a range of up to 15 meters】The sound range is 15 meters, covering both indoor and outdoor areas. Compared to traditional dog training devices, this device allows you to use your hands free. You can easily train your dog's behavior using the rotary knob. Tests have shown that the best results are achieved within 15 meters. The shorter the range, the better the effect.
【Effective for most dogs】The device works for most breeds and sizes, but not for deaf or hard-of-hearing dogs. Some dogs are afraid of or dislike the ultrasound and may not bark initially. Please allow up to 2 weeks for training.
【Safe anti-bark device】The ultrasound is harmless to pets. However, the device may not work as desired for hard-of-hearing or aggressive dogs. Using one device against two or more dogs barking simultaneously is not recommended. 【Easy and Waterproof Installation】The device can be easily hung or mounted on a tree, wall, or fence post to prevent your own dog or your neighbor's dog from barking. Ensure the bark stopper is pointed at the dog and has a clear line of sight.