Still afraid of dog barking? Wants to get a queit rest without barking? Now why not try our new Ultrasonic Dog Bark Controller? Easy to use and effective on multiple dog, you can make your dog no longer bark and make you have a quiet environment.Also it's made of ABS plastic, durable and waterproof. Do not worry about the rainy day anymore! Ultrasonic -- Stops a dog from barking by emitting harmless high-pitched ultrasonic sound which can be heard by dogs as far as 50 feet away but is completely silent to human ears. Mini Size Design -- This product appearance design is like an alarm clock, luxury outdoor ultrasonic stop barking can hang in a tree, anywhere in the house or in your yard, it can be hung on the table at random or elsewhere. Wide Applications -- Suitable for dogs of any size, the ultrasonic dog bark control devices/dog bark silencer could not only effectively block the barking of your dog and your neighbor's dog, but can also trains puppies to avoid barking. Satisfaction Gurantee -- We always provides the premium quality products to our consumers. If for any reason the ultrasonic dog bark controller does not work for you, contact us and you will get 100% MONEY BACK from us. No questions asked.