NEWEST TECHNOLOGY - Stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dogs. This version is more effective than old version deterrents and does not shock the dog.

COMPLIMENTARY ULTRASONIC WHISTLE INCLUDED - to help you train, teach and control your dog no matter where you go.

SUPER MINI DESIGN & WATERPROOF - This MINI anti bark dog controller is rectangle shape which is much more convenient and easier hanging or mounting on a wall, tree or fence post. Operates 9-Volt batteries (not included) that will last between 5 to 6 months depending on use.

HIGHLY FUNCTIONIONAL - Contain sensitive microphone isolates and picks up barking up to 50 feet away to stop barking both outdoors and indoors (recommended starting mode is level 1, increase if needed). This product works on dogs of all sizes NOTE: Does not work on deaf or hearing impaired dogs and might not work on some dogs.

HARMLESS FOR YOUR PETS AND FAMILY - Trusted by dog trainer & veterinarians. No electric shock, no liquid propellant is used, and most humane and used widely way to keep your own dog or your neighbours dog from barking.