【100% Safe Dog Bark Control】Ultrasonic frequency is harmless to pets and has no effect on the ears. Harmless and humane way to prevent your dog and your neighbor’s dog from barking. bark device dog bark stopper has passed numerous certifications, effective on all breeds and sizes of dogs. 【Modes 3-Mode Outdoor Ultrasonic Dog Bark Control】The anti-bark has 3 adjustable ultrasonic volume levels: low range, mid range and high range, can automatically detect barking from dog to dog. a distance from 10 meters (also works on your neighbours’ dogs! ) 【Automatic Control】Sensitive microphones automatically detect dogs barking and automatically emit high-pitched sounds that only the dog can hear. Once the dog stops barking, the ultrasonic barking automatically stops ultrasonic sound transmission. 【IPX7 Waterproof Dog Barking Device】Ultrasonic dog skin control, durable, weatherproof and weatherproof, lightweight and waterproof material, safe for indoor and outdoor use, whatever the weather
