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Highlights 【 HUMAN & PETS SAFE】: Safe to your dogs of any size, other pets, plants, and of course yourself and your loved ones. 【NEW TECH】: Stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog. More effective than old version deterrents and waterproof. 【SUPER CUTE MINI DESIGN】: The New Bark Controller come with a well-designed mini shape. Designed for handy hanging/mounting on a tree, wall or fence post to stop any dogs barking (within range). 【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. Tips: In order to ensure the normal use of the dog trainer, please use it after charging. Please unplug the power supply in time after charging.