Mini Bark Control Device Anti Barking Deterrent Training Tool Stop Barking Safe for Dogs Indoor/Outdoor use New Tech: stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog. More effective than old version deterrents and waterproof. Highly function: contain sensitive microphone isolates and picks up barking up to 50 feet away to stop barking both outdoors and indoors (recommended starting mode for indoors is level 1, increase if needed). note: does not work on Deaf or hearing Impaired dogs. Super cute Mini design: the new bark controller come with a well-designed Mini shape. Designed for easy Hanging/mounting on a tree, wall or fence post to stop any dogs barking. Human & pets safe: 100% safe. Safe to your dogs of any size, other pets, Plants, and of course yourself and your loved ones. Satisfaction GUARANTEED: you are protected by our money back Guarantee, PLEASE give up to two-weeks try. If our product does not work for you, Please contact us for a full refund.