Ultrasonic Outdoor Anti-Barking Dog Bark Deterrent

Ultrasonic Anti Barking Device is the most humane and effective way to stop unwanted barking, more user-friendly and safer than the electric dog collar. Provide a quiet environment for you and your family when you talk, sleep, work and coax the baby etc. Feature: 4 Levels of Operation: 3 adjustable frequencies (0-9) and an auto variable frequency. With LCD display: the frequency and battery level are more clearly to see. Detects barks up to 50 feet with the use of an internal microphone. Suitable for all kinds of dog and safety to humans and animals Durable and weatherproof for indoor and outdoor Powered by a 9V battery - (Batteries not included) Kindly Remind The max detect range is 50 feet, the bark stopper will not be triggered to work by dog barking if out of this range. The anti barking device is not applicable to the following situations: aggressive dogs, noisy surroundings, hearing impaired dogs, two or more dogs together, dogs under 6 months or over 8 years. Using one device against two or more barking dogs at once is not recommended. Make sure the bark controller is facing the dog within range without any obstructions. Using the same ultrasonic frequency at the same dog for 10 days or more is not recommended. The dog may have resistance to the same frequency.