Anti Dog Bark Ultrasonic Sound Device Stop Pet Barking Control Pet Training New

Dog Barking Control Device with 3 Ultrasonic Frequency Sonic Bark Deterrents, Rechargeable Indoor Outdoor Anti Barking Device 30Ft Dog Barking Deterrent  * This bark control device has 3 modes that can be adjusted to effectively stop dogs of different sizes from barking. 15-30 range for large, naughty dogs; 20 range for stopping gentle dogs from barking; 30 range for two small dogs. The control distance can be set up to 33FT. * Works by sending a frequency that only dogs can hear. No electric shock, smell, or beeping sound. Harmless to dogs and human hearing. A perfect automatic dog silencer to calm dogs and create a quiet environment for families and neighbours. * Does not come with USB charging cable. * Portable hook for outdoor use, easy to hang on trees, walls or fence posts. When working at 3 levels, the indicator light on the anti-barker will flash blue every 6s; when the deterrent is triggered by a barking dog, the red light stays on for 3s; when at low battery, the red light will flash.